Vulnerability-Lookup

CVE-2026-39827 (GCVE-0-2026-39827)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:35

Title

Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh

Summary

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for garbage collection.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Go

References

URL

Tags

	https://go.dev/issue/35127
	https://go.dev/cl/781320
	https://groups.google.com/g/golang-announce/c/a08…
	https://pkg.go.dev/vuln/GO-2026-5016

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

Ziyan Zhou

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 6.5,
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
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          "dateUpdated": "2026-05-22T18:35:40.472Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
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            {
              "name": "channel.Reject"
            }
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            }
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        {
          "lang": "en",
          "value": "Ziyan Zhou"
        }
      ],
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        }
      ],
      "problemTypes": [
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        },
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        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5016"
        }
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      "title": "Invoking  memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh"
    }
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    "dateUpdated": "2026-05-22T18:35:40.472Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-39834 (GCVE-0-2026-39834)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:50

Title

Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh

Summary

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79567
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781663
	https://pkg.go.dev/vuln/GO-2026-5020

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
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              "attackVector": "NETWORK",
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              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
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              "userInteraction": "NONE",
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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "defaultStatus": "unaffected",
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              "name": "channel.WriteExtended"
            },
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              "name": "NewClientConn"
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              "name": "NewServerConn"
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              "name": "Session.CombinedOutput"
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            {
              "name": "Session.Run"
            },
            {
              "name": "Session.Shell"
            },
            {
              "name": "Session.Start"
            },
            {
              "name": "channel.Write"
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            {
              "name": "curve25519sha256.Client"
            },
            {
              "name": "curve25519sha256.Server"
            },
            {
              "name": "dhGEXSHA.Client"
            },
            {
              "name": "dhGEXSHA.Server"
            },
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              "name": "dhGroup.Client"
            },
            {
              "name": "dhGroup.Server"
            },
            {
              "name": "ecdh.Client"
            },
            {
              "name": "ecdh.Server"
            },
            {
              "name": "extChannel.Write"
            },
            {
              "name": "mlkem768WithCurve25519sha256.Client"
            },
            {
              "name": "mlkem768WithCurve25519sha256.Server"
            }
          ],
          "vendor": "golang.org/x/crypto",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
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      "credits": [
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          "lang": "en",
          "value": "NCC Group Cryptography Services, sponsored by Teleport"
        }
      ],
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        {
          "lang": "en",
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        }
      ],
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        },
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        },
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          "url": "https://go.dev/cl/781663"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5020"
        }
      ],
      "title": "Invoking  infinite loop on large channel writes in golang.org/x/crypto/ssh"
    }
  },
  "cveMetadata": {
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    "dateReserved": "2026-04-07T18:13:03.529Z",
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  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42508 (GCVE-0-2026-42508)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:05

Title

Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts

Summary

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-295 - Improper Certificate Validation

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79568
	https://go.dev/cl/781220
	https://groups.google.com/g/golang-announce/c/a08…
	https://pkg.go.dev/vuln/GO-2026-5021

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh/knownhosts	Affected: 0 , < 0.52.0 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
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            }
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          },
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            ],
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          },
          {
            "cpes": [
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          },
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          },
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            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42508.json"
          },
          {
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          },
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        ],
        "timeline": [
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CVE-2026-1229 (GCVE-0-2026-1229)

Vulnerability from cvelistv5 – Published: 2026-02-24 07:58 – Updated: 2026-02-24 15:10

Title

Incorrect calculation in CIRCL secp384r1 CombinedMult

Summary

The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .

Severity ?

2.9 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/U:Amber

CWE

CWE-682 - Incorrect Calculation

Assigner

cloudflare

References

URL

Tags

https://github.com/cloudflare/circl

Impacted products

	Vendor	Product	Version
	Cloudflare	CIRCL	Affected: CIRCL up to version 1.6.2 , < 1.6.3 (custom)

Credits

Guido Vranken

Show details on NVD website

JSON

To clipboard

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CVE-2025-61723 (GCVE-0-2025-61723)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:14

Title

Quadratic complexity when parsing some invalid inputs in encoding/pem

Summary

The processing time for parsing some invalid inputs scales non-linearly with respect to the size of the input. This affects programs which parse untrusted PEM inputs.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go

References

URL

Tags

	https://go.dev/issue/75676
	https://go.dev/cl/709858
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4009

Impacted products

	Vendor	Product	Version
	Go standard library	encoding/pem	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Jakub Ciolek

Show details on NVD website

JSON

To clipboard

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CVE-2026-39835 (GCVE-0-2026-39835)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:05

Title

Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh

Summary

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79563
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781660
	https://pkg.go.dev/vuln/GO-2026-5015

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

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CVE-2026-39832 (GCVE-0-2026-39832)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:05

Title

Invoking agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agent

Summary

When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-281 - Improper Preservation of Permissions

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79435
	https://go.dev/cl/778642
	https://groups.google.com/g/golang-announce/c/a08…
	https://pkg.go.dev/vuln/GO-2026-5006

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh/agent	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

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CVE-2025-58187 (GCVE-0-2025-58187)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-20 22:23

Title

Quadratic complexity when checking name constraints in crypto/x509

Summary

Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary certificate chains.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go

References

URL

Tags

	https://go.dev/issue/75681
	https://go.dev/cl/709854
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4007

Impacted products

	Vendor	Product	Version
	Go standard library	crypto/x509	Affected: 0 , < 1.24.9 (semver) Affected: 1.25.0 , < 1.25.3 (semver)

Credits

Jakub Ciolek

Show details on NVD website

JSON

To clipboard

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CVE-2025-58185 (GCVE-0-2025-58185)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13

Title

Parsing DER payload can cause memory exhaustion in encoding/asn1

Summary

Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Go

References

URL

Tags

	https://go.dev/issue/75671
	https://go.dev/cl/709856
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4011

Impacted products

	Vendor	Product	Version
	Go standard library	encoding/asn1	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Jakub Ciolek

Show details on NVD website

JSON

To clipboard

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CVE-2026-46595 (GCVE-0-2026-46595)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:05

Title

Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh

Summary

Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed other than public key, then the source-address validation would be skipped.

Severity ?

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

CWE

CWE-863 - Incorrect Authorization

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79570
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781642
	https://pkg.go.dev/vuln/GO-2026-5023

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-39828 (GCVE-0-2026-39828)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-02 12:05

Title

Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh

Summary

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.

Severity ?

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CWE

CWE-863 - Incorrect Authorization

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79562
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781621
	https://pkg.go.dev/vuln/GO-2026-5014

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

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        "shortName": "Go"
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          "url": "https://go.dev/issue/79562"
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        },
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          "url": "https://go.dev/cl/781621"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5014"
        }
      ],
      "title": "Invoking  bypass of certificate restrictions in golang.org/x/crypto/ssh"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
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    "datePublished": "2026-05-22T02:31:26.883Z",
    "dateReserved": "2026-04-07T18:13:03.528Z",
    "dateUpdated": "2026-07-02T12:05:14.977Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-46598 (GCVE-0-2026-46598)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:14

Title

Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent

Summary

For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-129 - Improper Validation of Array Index

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79596
	https://go.dev/cl/781360
	https://groups.google.com/g/golang-announce/c/a08…
	https://pkg.go.dev/vuln/GO-2026-5033

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh/agent	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "NONE",
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          },
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              "content": {
                "id": "CVE-2026-46598",
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        "providerMetadata": {
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/crypto/ssh/agent",
          "product": "golang.org/x/crypto/ssh/agent",
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            {
              "name": "parseEd25519Cert"
            },
            {
              "name": "parseEd25519Key"
            },
            {
              "name": "ForwardToAgent"
            },
            {
              "name": "ServeAgent"
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          "vendor": "golang.org/x/crypto",
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              "lessThan": "0.52.0",
              "status": "affected",
              "version": "0",
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          "value": "NCC Group Cryptography Services, sponsored by Teleport"
        }
      ],
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          "descriptions": [
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              "description": "CWE-129: Improper Validation of Array Index",
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        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5033"
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      ],
      "title": "Invoking  pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent"
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}

CVE-2025-61724 (GCVE-0-2025-61724)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:14

Title

Excessive CPU consumption in Reader.ReadResponse in net/textproto

Summary

The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go

References

URL

Tags

	https://go.dev/cl/709859
	https://go.dev/issue/75716
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4015

Impacted products

	Vendor	Product	Version
	Go standard library	net/textproto	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Jakub Ciolek

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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            }
          },
          {
            "other": {
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                "id": "CVE-2025-61724",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:14:03.930Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
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          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/08/1"
          }
        ],
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          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
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            }
          ],
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              "status": "affected",
              "version": "0",
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            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Jakub Ciolek"
        }
      ],
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          "value": "The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "CWE-407: Inefficient Algorithmic Complexity",
              "lang": "en"
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      "providerMetadata": {
        "dateUpdated": "2025-10-29T22:10:14.609Z",
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        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-4015"
        }
      ],
      "title": "Excessive CPU consumption in Reader.ReadResponse in net/textproto"
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  "cveMetadata": {
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    "dateUpdated": "2025-11-04T21:14:03.930Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2025-58189 (GCVE-0-2025-58189)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13

Title

ALPN negotiation error contains attacker controlled information in crypto/tls

Summary

When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-117 - Improper Output Neutralization for Logs

Assigner

Go

References

URL

Tags

	https://go.dev/cl/707776
	https://go.dev/issue/75652
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4008

Impacted products

	Vendor	Product	Version
	Go standard library	crypto/tls	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

National Cyber Security Centre Finland

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-58189",
                "options": [
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                    "Exploitation": "none"
                  },
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                  },
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                    "Technical Impact": "partial"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:51:22.704Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:13:39.428Z",
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        },
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          }
        ],
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/tls",
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              "name": "negotiateALPN"
            },
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              "name": "Conn.Handshake"
            },
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              "name": "Conn.HandshakeContext"
            },
            {
              "name": "Conn.Read"
            },
            {
              "name": "Conn.Write"
            },
            {
              "name": "Dial"
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            {
              "name": "DialWithDialer"
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              "name": "Dialer.Dial"
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            },
            {
              "name": "QUICConn.Start"
            }
          ],
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
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              "version": "1.25.0",
              "versionType": "semver"
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          "lang": "en",
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      ],
      "title": "ALPN negotiation error contains attacker controlled information in crypto/tls"
    }
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CVE-2026-27141 (GCVE-0-2026-27141)

Vulnerability from cvelistv5 – Published: 2026-02-26 18:50 – Updated: 2026-02-27 19:11

Title

Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net

Summary

Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Go

References

URL

Tags

	https://nvd.nist.gov/vuln/detail/CVE-2026-27141
	https://go.dev/cl/746180
	https://go.dev/issue/77652
	https://pkg.go.dev/vuln/GO-2026-4559

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/http2	Affected: 0.50.0 , < 0.51.0 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
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          },
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                "options": [
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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "collectionURL": "https://pkg.go.dev",
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          "packageName": "golang.org/x/net/http2",
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            },
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            },
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            },
            {
              "name": "ClientConn.RoundTrip"
            },
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              "name": "ClientConn.Shutdown"
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            {
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              "name": "ConnectionError.Error"
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            },
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              "name": "FrameHeader.String"
            },
            {
              "name": "FrameType.String"
            },
            {
              "name": "FrameWriteRequest.String"
            },
            {
              "name": "Framer.ReadFrame"
            },
            {
              "name": "Framer.ReadFrameForHeader"
            },
            {
              "name": "Framer.ReadFrameHeader"
            },
            {
              "name": "Framer.WriteContinuation"
            },
            {
              "name": "Framer.WriteData"
            },
            {
              "name": "Framer.WriteDataPadded"
            },
            {
              "name": "Framer.WriteGoAway"
            },
            {
              "name": "Framer.WriteHeaders"
            },
            {
              "name": "Framer.WritePing"
            },
            {
              "name": "Framer.WritePriority"
            },
            {
              "name": "Framer.WritePriorityUpdate"
            },
            {
              "name": "Framer.WritePushPromise"
            },
            {
              "name": "Framer.WriteRSTStream"
            },
            {
              "name": "Framer.WriteRawFrame"
            },
            {
              "name": "Framer.WriteSettings"
            },
            {
              "name": "Framer.WriteSettingsAck"
            },
            {
              "name": "Framer.WriteWindowUpdate"
            },
            {
              "name": "GoAwayError.Error"
            },
            {
              "name": "ReadFrameHeader"
            },
            {
              "name": "Server.ServeConn"
            },
            {
              "name": "Setting.String"
            },
            {
              "name": "SettingID.String"
            },
            {
              "name": "SettingsFrame.ForeachSetting"
            },
            {
              "name": "StreamError.Error"
            },
            {
              "name": "Transport.CloseIdleConnections"
            },
            {
              "name": "Transport.NewClientConn"
            },
            {
              "name": "Transport.RoundTrip"
            },
            {
              "name": "Transport.RoundTripOpt"
            },
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              "name": "bufferedWriter.Flush"
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              "name": "duplicatePseudoHeaderError.Error"
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              "name": "gzipReader.Close"
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              "name": "gzipReader.Read"
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              "name": "headerFieldNameError.Error"
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              "name": "headerFieldValueError.Error"
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              "name": "netHTTPClientConn.RoundTrip"
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              "name": "priorityWriteSchedulerRFC7540.CloseStream"
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              "name": "priorityWriteSchedulerRFC7540.OpenStream"
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              "name": "responseWriter.WriteString"
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              "name": "serverConn.CloseConn"
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            {
              "name": "serverConn.Flush"
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              "name": "stickyErrWriter.Write"
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              "name": "transportResponseBody.Close"
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              "name": "transportResponseBody.Read"
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              "lessThan": "0.51.0",
              "status": "affected",
              "version": "0.50.0",
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          ]
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          "lang": "en",
          "value": "Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-476: NULL Pointer Dereference",
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      "providerMetadata": {
        "dateUpdated": "2026-02-26T18:50:31.830Z",
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          "url": "https://go.dev/cl/746180"
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          "url": "https://go.dev/issue/77652"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4559"
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CVE-2026-27136 (GCVE-0-2026-27136)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 16:59

Title

Invoking duplicate attributes can cause XSS in golang.org/x/net/html

Summary

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Severity ?

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79575
	https://groups.google.com/g/golang-announce/c/iI-…
	https://go.dev/cl/781685
	https://pkg.go.dev/vuln/GO-2026-5030

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

ensy

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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            "cvssV3_1": {
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          "url": "https://pkg.go.dev/vuln/GO-2026-5030"
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CVE-2026-42502 (GCVE-0-2026-42502)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:17

Title

Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html

Summary

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Severity ?

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79572
	https://groups.google.com/g/golang-announce/c/iI-…
	https://go.dev/cl/781701
	https://pkg.go.dev/vuln/GO-2026-5027

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

Tristan Madani

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "name": "parser.parse"
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          "url": "https://pkg.go.dev/vuln/GO-2026-5027"
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CVE-2026-25680 (GCVE-0-2026-25680)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:00

Title

Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

Summary

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go

References

URL

Tags

	https://go.dev/cl/781702
	https://go.dev/issue/79573
	https://groups.google.com/g/golang-announce/c/iI-…
	https://pkg.go.dev/vuln/GO-2026-5028

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

IPC Labs

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
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              "attackVector": "NETWORK",
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CVE-2026-39830 (GCVE-0-2026-39830)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:05

Title

Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh

Summary

A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CWE

CWE-833 - Deadlock

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79564
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781640
	https://go.dev/cl/781664
	https://pkg.go.dev/vuln/GO-2026-5017

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

{
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            "cpes": [
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              "name": "channel.SendRequest"
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              "name": "Client.Listen"
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              "name": "Client.ListenTCP"
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              "description": "CWE-833: Deadlock",
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          "url": "https://pkg.go.dev/vuln/GO-2026-5017"
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CVE-2025-61725 (GCVE-0-2025-61725)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-12-09 17:42

Title

Excessive CPU consumption in ParseAddress in net/mail

Summary

The ParseAddress function constructs domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go

References

URL

Tags

	https://go.dev/cl/709860
	https://go.dev/issue/75680
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4006

Impacted products

	Vendor	Product	Version
	Go standard library	net/mail	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Philippe Antoine (Catena cyber)

Show details on NVD website

JSON

To clipboard

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CVE-2025-58186 (GCVE-0-2025-58186)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13

Title

Lack of limit when parsing cookies can cause memory exhaustion in net/http

Summary

Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Go

References

URL

Tags

	https://go.dev/issue/75672
	https://go.dev/cl/709855
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4012

Impacted products

	Vendor	Product	Version
	Go standard library	net/http	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

jub0bs

Show details on NVD website

JSON

To clipboard

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            },
            {
              "name": "Client.Head"
            },
            {
              "name": "Client.Post"
            },
            {
              "name": "Client.PostForm"
            },
            {
              "name": "Get"
            },
            {
              "name": "Head"
            },
            {
              "name": "Post"
            },
            {
              "name": "PostForm"
            },
            {
              "name": "Request.Cookie"
            },
            {
              "name": "Request.Cookies"
            },
            {
              "name": "Request.CookiesNamed"
            },
            {
              "name": "Response.Cookies"
            }
          ],
          "vendor": "Go standard library",
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              "lessThan": "1.24.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.25.2",
              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "jub0bs"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as \"a=;\", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-29T22:10:13.912Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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          "url": "https://go.dev/issue/75672"
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        {
          "url": "https://go.dev/cl/709855"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-4012"
        }
      ],
      "title": "Lack of limit when parsing cookies can cause memory exhaustion in net/http"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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    "dateUpdated": "2025-11-04T21:13:35.468Z",
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  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-39831 (GCVE-0-2026-39831)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:52

Title

Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh

Summary

The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79566
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781662
	https://pkg.go.dev/vuln/GO-2026-5019

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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          {
            "other": {
              "content": {
                "id": "CVE-2026-39831",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/crypto/ssh",
          "product": "golang.org/x/crypto/ssh",
          "programRoutines": [
            {
              "name": "CertChecker.CheckCert"
            },
            {
              "name": "skECDSAPublicKey.Verify"
            },
            {
              "name": "skEd25519PublicKey.Verify"
            },
            {
              "name": "connection.serverAuthenticate"
            },
            {
              "name": "CertChecker.Authenticate"
            },
            {
              "name": "CertChecker.CheckHostKey"
            },
            {
              "name": "Certificate.Verify"
            },
            {
              "name": "Dial"
            },
            {
              "name": "NewClientConn"
            },
            {
              "name": "NewServerConn"
            }
          ],
          "vendor": "golang.org/x/crypto",
          "versions": [
            {
              "lessThan": "0.52.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "NCC Group Cryptography Services, sponsored by Teleport"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a \"no-touch-required\" extension in Permissions.Extensions from PublicKeyCallback."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-290: Authentication Bypass by Spoofing",
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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T02:31:27.436Z",
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          "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
        },
        {
          "url": "https://go.dev/cl/781662"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5019"
        }
      ],
      "title": "Invoking  bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "Go",
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    "dateReserved": "2026-04-07T18:13:03.528Z",
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}

CVE-2026-46597 (GCVE-0-2026-46597)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 14:08

Title

Invoking byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh

Summary

An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-191 - Integer Underflow (Wrap or Wraparound)

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79561
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781620
	https://pkg.go.dev/vuln/GO-2026-5013

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

Maciej Kawka

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "content": {
                "id": "CVE-2026-46597",
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        "providerMetadata": {
          "dateUpdated": "2026-05-22T14:08:27.674Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/crypto/ssh",
          "product": "golang.org/x/crypto/ssh",
          "programRoutines": [
            {
              "name": "gcmCipher.readCipherPacket"
            },
            {
              "name": "Dial"
            },
            {
              "name": "NewClientConn"
            },
            {
              "name": "NewServerConn"
            },
            {
              "name": "curve25519sha256.Client"
            },
            {
              "name": "curve25519sha256.Server"
            },
            {
              "name": "dhGEXSHA.Client"
            },
            {
              "name": "dhGEXSHA.Server"
            },
            {
              "name": "dhGroup.Client"
            },
            {
              "name": "dhGroup.Server"
            },
            {
              "name": "ecdh.Client"
            },
            {
              "name": "ecdh.Server"
            },
            {
              "name": "mlkem768WithCurve25519sha256.Client"
            },
            {
              "name": "mlkem768WithCurve25519sha256.Server"
            }
          ],
          "vendor": "golang.org/x/crypto",
          "versions": [
            {
              "lessThan": "0.52.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Maciej Kawka"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T02:31:26.754Z",
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          "url": "https://go.dev/cl/781620"
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        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5013"
        }
      ],
      "title": "Invoking  byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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    "datePublished": "2026-05-22T02:31:26.754Z",
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}

CVE-2025-58183 (GCVE-0-2025-58183)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13

Title

Unbounded allocation when parsing GNU sparse map in archive/tar

Summary

tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A maliciously-crafted archive containing a large number of sparse regions can cause a Reader to read an unbounded amount of data from the archive into memory. When reading from a compressed source, a small compressed input can result in large allocations.

Severity ?

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Go

References

URL

Tags

	https://go.dev/cl/709861
	https://go.dev/issue/75677
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4014

Impacted products

	Vendor	Product	Version
	Go standard library	archive/tar	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Harshit Gupta (Mr HAX)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 4.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-58183",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
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                    "Technical Impact": "partial"
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                "timestamp": "2025-10-30T14:22:41.219110Z",
                "version": "2.0.3"
              },
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            }
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        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:13:32.834Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/08/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "archive/tar",
          "product": "archive/tar",
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            {
              "name": "readGNUSparseMap1x0"
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              "name": "Reader.Next"
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              "version": "1.25.0",
              "versionType": "semver"
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          ]
        }
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        {
          "lang": "en",
          "value": "Harshit Gupta (Mr HAX)"
        }
      ],
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          "lang": "en",
          "value": "tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A maliciously-crafted archive containing a large number of sparse regions can cause a Reader to read an unbounded amount of data from the archive into memory. When reading from a compressed source, a small compressed input can result in large allocations."
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          "url": "https://pkg.go.dev/vuln/GO-2025-4014"
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      ],
      "title": "Unbounded allocation when parsing GNU sparse map in archive/tar"
    }
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  "cveMetadata": {
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    "dateReserved": "2025-08-27T14:50:58.691Z",
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}

CVE-2026-39833 (GCVE-0-2026-39833)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:58

Title

Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent

Summary

The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-358 - Improperly Implemented Security Check for Standard

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79436
	https://go.dev/cl/778640
	https://go.dev/cl/778641
	https://groups.google.com/g/golang-announce/c/a08…
	https://pkg.go.dev/vuln/GO-2026-5005

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh/agent	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-39833",
                "options": [
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                    "Exploitation": "none"
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                  },
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                    "Technical Impact": "total"
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/crypto/ssh/agent",
          "product": "golang.org/x/crypto/ssh/agent",
          "programRoutines": [
            {
              "name": "keyring.Add"
            }
          ],
          "vendor": "golang.org/x/crypto",
          "versions": [
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              "lessThan": "0.52.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "NCC Group Cryptography Services, sponsored by Teleport"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-358: Improperly Implemented Security Check for Standard",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T02:31:26.294Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
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          "url": "https://go.dev/issue/79436"
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          "url": "https://go.dev/cl/778640"
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          "url": "https://go.dev/cl/778641"
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          "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5005"
        }
      ],
      "title": "Invoking  key constraints not enforced in golang.org/x/crypto/ssh/agent"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-39833",
    "datePublished": "2026-05-22T02:31:26.294Z",
    "dateReserved": "2026-04-07T18:13:03.529Z",
    "dateUpdated": "2026-05-22T18:58:08.489Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-25681 (GCVE-0-2026-25681)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:46

Title

Invoking incorrect handling of character references in DOCTYPE nodes in golang.org/x/net/html

Summary

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Severity ?

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79574
	https://groups.google.com/g/golang-announce/c/iI-…
	https://go.dev/cl/781703
	https://pkg.go.dev/vuln/GO-2026-5029

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

ensy

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
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            "other": {
              "content": {
                "id": "CVE-2026-25681",
                "options": [
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                    "Technical Impact": "partial"
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          "dateUpdated": "2026-05-22T17:46:20.366Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/net/html",
          "product": "golang.org/x/net/html",
          "programRoutines": [
            {
              "name": "parser.parse"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseFragment"
            },
            {
              "name": "ParseFragmentWithOptions"
            },
            {
              "name": "ParseWithOptions"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
            {
              "lessThan": "0.55.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ensy"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T15:01:21.975Z",
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        },
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          "url": "https://go.dev/cl/781703"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5029"
        }
      ],
      "title": "Invoking  incorrect handling of character references in DOCTYPE nodes in golang.org/x/net/html"
    }
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  "cveMetadata": {
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    "dateReserved": "2026-02-05T01:35:43.738Z",
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}

CVE-2025-47912 (GCVE-0-2025-47912)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:10

Title

Insufficient validation of bracketed IPv6 hostnames in net/url

Summary

The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Assigner

Go

References

URL

Tags

	https://go.dev/issue/75678
	https://go.dev/cl/709857
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4010

Impacted products

	Vendor	Product	Version
	Go standard library	net/url	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Enze Wang, Jingcheng Yang and Zehui Miao of Tsinghua University

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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          },
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              "content": {
                "id": "CVE-2025-47912",
                "options": [
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                "timestamp": "2025-10-30T20:37:56.865966Z",
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          "dateUpdated": "2025-10-30T20:38:24.266Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:10:57.384Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/08/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/url",
          "product": "net/url",
          "programRoutines": [
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              "name": "parseHost"
            },
            {
              "name": "JoinPath"
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              "name": "Parse"
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            },
            {
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          ],
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              "status": "affected",
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            }
          ]
        }
      ],
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        {
          "lang": "en",
          "value": "Enze Wang, Jingcheng Yang and Zehui Miao of Tsinghua University"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: \"http://[::1]/\". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement."
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-1286: Improper Validation of Syntactic Correctness of Input",
              "lang": "en"
            }
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      "title": "Insufficient validation of bracketed IPv6 hostnames in net/url"
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    "dateReserved": "2025-05-13T23:31:29.597Z",
    "dateUpdated": "2025-11-04T21:10:57.384Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-39821 (GCVE-0-2026-39821)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-07-02 12:04

Title

Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna

Summary

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com".

Severity ?

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CWE

CWE-1289 - Improper Validation of Unsafe Equivalence in Input

Assigner

Go

References

URL

Tags

	https://go.dev/cl/767220
	https://go.dev/issue/78760
	https://groups.google.com/g/golang-announce/c/iI-…
	https://pkg.go.dev/vuln/GO-2026-5026

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/idna	Affected: 0 , < 0.55.0 (semver)

Credits

KC1zs4 (https://github.com/KC1zs4)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.6,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-39821",
                "options": [
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                    "Exploitation": "none"
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                    "Technical Impact": "total"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-23T03:55:58.522682Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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                "type": "CWE"
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            ]
          }
        ],
        "providerMetadata": {
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream (v. 10)",
            "vendor": "Red Hat"
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            "product": "Red Hat Enterprise Linux AppStream (v. 8)",
            "vendor": "Red Hat"
          },
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            "vendor": "Red Hat"
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            "product": "Cluster Observability Operator 1.5.0",
            "vendor": "Red Hat"
          },
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            "vendor": "Red Hat"
          },
          {
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            "vendor": "Red Hat"
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          },
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          },
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            ],
            "defaultStatus": "affected",
            "product": "multicluster engine for Kubernetes 2.8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
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            "product": "Assisted Installer for Red Hat OpenShift Container Platform 2",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
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            ],
            "defaultStatus": "affected",
            "product": "Builds for Red Hat OpenShift",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
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            ],
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            "product": "cert-manager Operator for Red Hat OpenShift",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_compliance_operator:1"
            ],
            "defaultStatus": "affected",
            "product": "Compliance Operator",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:confidential_compute_attestation:1"
            ],
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            "product": "Confidential Compute Attestation",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:cryostat:4"
            ],
            "defaultStatus": "affected",
            "product": "Cryostat 4",
            "vendor": "Red Hat"
          },
          {
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              "cpe:/a:redhat:deployment_validator_operator"
            ],
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            "vendor": "Red Hat"
          },
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              "cpe:/a:redhat:external_secrets_operator:1"
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            "vendor": "Red Hat"
          },
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            "cpes": [
              "cpe:/a:redhat:workload_availability_far:0"
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            "product": "Fence Agents Remediation Operator",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_file_integrity_operator:1"
            ],
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            "vendor": "Red Hat"
          },
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            "cpes": [
              "cpe:/a:redhat:gatekeeper:3"
            ],
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            "product": "Gatekeeper 3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:lvms:4"
            ],
            "defaultStatus": "affected",
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            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:workload_availability_mdr:0"
            ],
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            "product": "Machine Deletion Remediation Operator",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:migration_toolkit_applications:8"
            ],
            "defaultStatus": "affected",
            "product": "Migration Toolkit for Applications 8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhmt:1"
            ],
            "defaultStatus": "affected",
            "product": "Migration Toolkit for Containers",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:multiarch_tuning_operator"
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        "workarounds": [
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              "name": "Profile.process"
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            {
              "name": "Profile.ToASCII"
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            {
              "name": "Profile.ToUnicode"
            },
            {
              "name": "ToASCII"
            },
            {
              "name": "ToUnicode"
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          "lang": "en",
          "value": "KC1zs4 (https://github.com/KC1zs4)"
        }
      ],
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          "value": "The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode(\"xn--example-.com\") incorrectly returns the name \"example.com\" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject \"example.com\" but permit \"xn--example-.com\". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name \"example.com\"."
        }
      ],
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              "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input",
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        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
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          "url": "https://go.dev/cl/767220"
        },
        {
          "url": "https://go.dev/issue/78760"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5026"
        }
      ],
      "title": "Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-39821",
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    "dateReserved": "2026-04-07T18:13:03.526Z",
    "dateUpdated": "2026-07-02T12:04:43.133Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-61729 (GCVE-0-2025-61729)

Vulnerability from cvelistv5 – Published: 2025-12-02 18:54 – Updated: 2025-12-03 19:37

Title

Excessive resource consumption when printing error string for host certificate validation in crypto/x509

Summary

Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Go

References

URL

Tags

	https://go.dev/cl/725920
	https://go.dev/issue/76445
	https://groups.google.com/g/golang-announce/c/8FJ…
	https://pkg.go.dev/vuln/GO-2025-4155

Impacted products

	Vendor	Product	Version
	Go standard library	crypto/x509	Affected: 0 , < 1.24.11 (semver) Affected: 1.25.0 , < 1.25.5 (semver)

Credits

Philippe Antoine (Catena cyber)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
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          "shortName": "CISA-ADP"
        },
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      }
    ],
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          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/x509",
          "product": "crypto/x509",
          "programRoutines": [
            {
              "name": "Certificate.VerifyHostname"
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              "name": "Certificate.Verify"
            }
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          "vendor": "Go standard library",
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          "value": "Philippe Antoine (Catena cyber)"
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CVE-2026-42506 (GCVE-0-2026-42506)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:45

Title

Invoking incorrect handling of namespaced elements in foreign content in golang.org/x/net/html

Summary

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Severity ?

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79571
	https://groups.google.com/g/golang-announce/c/iI-…
	https://go.dev/cl/781700
	https://pkg.go.dev/vuln/GO-2026-5025

Impacted products

	Vendor	Product	Version
	golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

ensy

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
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              "name": "parser.parse"
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        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5025"
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    }
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}

CVE-2026-39829 (GCVE-0-2026-39829)

Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:04

Title

Invoking pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh

Summary

The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated clients during public key authentication. RSA moduli are now limited to 8192 bits, and DSA parameters are validated per FIPS 186-2.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1176 - Inefficient CPU Computation

Assigner

Go

References

URL

Tags

	https://go.dev/issue/79565
	https://groups.google.com/g/golang-announce/c/a08…
	https://go.dev/cl/781641
	https://go.dev/cl/781661
	https://pkg.go.dev/vuln/GO-2026-5018

Impacted products

	Vendor	Product	Version
	golang.org/x/crypto	golang.org/x/crypto/ssh	Affected: 0 , < 0.52.0 (semver)

Credits

NCC Group Cryptography Services, sponsored by Teleport

Show details on NVD website

JSON

To clipboard

{
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              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39829.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:29455"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:26547"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:26546"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:29455: Red Hat Enterprise Linux AppStream (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:26547: Red Hat Advanced Cluster Security for Kubernetes 4.10"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:26546: Red Hat Advanced Cluster Security for Kubernetes 4.9"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-05-22T04:01:30.092Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-05-22T02:31:27.324Z",
            "value": "Made public."
          }
        ],
        "title": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters",
        "workarounds": [
          {
            "lang": "en",
            "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/crypto/ssh",
          "product": "golang.org/x/crypto/ssh",
          "programRoutines": [
            {
              "name": "parseRSA"
            },
            {
              "name": "checkDSAParams"
            },
            {
              "name": "parseDSA"
            },
            {
              "name": "Dial"
            },
            {
              "name": "NewClientConn"
            },
            {
              "name": "NewServerConn"
            },
            {
              "name": "NewSignerFromKey"
            },
            {
              "name": "ParseAuthorizedKey"
            },
            {
              "name": "ParseKnownHosts"
            },
            {
              "name": "ParsePrivateKey"
            },
            {
              "name": "ParsePrivateKeyWithPassphrase"
            },
            {
              "name": "ParsePublicKey"
            },
            {
              "name": "ParseRawPrivateKey"
            },
            {
              "name": "ParseRawPrivateKeyWithPassphrase"
            }
          ],
          "vendor": "golang.org/x/crypto",
          "versions": [
            {
              "lessThan": "0.52.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "NCC Group Cryptography Services, sponsored by Teleport"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated clients during public key authentication. RSA moduli are now limited to 8192 bits, and DSA parameters are validated per FIPS 186-2."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-1176: Inefficient CPU Computation",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T02:31:27.324Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/79565"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
        },
        {
          "url": "https://go.dev/cl/781641"
        },
        {
          "url": "https://go.dev/cl/781661"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5018"
        }
      ],
      "title": "Invoking  pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-39829",
    "datePublished": "2026-05-22T02:31:27.324Z",
    "dateReserved": "2026-04-07T18:13:03.528Z",
    "dateUpdated": "2026-07-03T12:04:53.309Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-58188 (GCVE-0-2025-58188)

Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13

Title

Panic when validating certificates with DSA public keys in crypto/x509

Summary

Validating certificate chains which contain DSA public keys can cause programs to panic, due to a interface cast that assumes they implement the Equal method. This affects programs which validate arbitrary certificate chains.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-248 - Uncaught Exception

Assigner

Go

References

URL

Tags

	https://go.dev/cl/709853
	https://go.dev/issue/75675
	https://groups.google.com/g/golang-announce/c/4Em…
	https://pkg.go.dev/vuln/GO-2025-4013

Impacted products

	Vendor	Product	Version
	Go standard library	crypto/x509	Affected: 0 , < 1.24.8 (semver) Affected: 1.25.0 , < 1.25.2 (semver)

Credits

Jakub Ciolek

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
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              "content": {
                "id": "CVE-2025-58188",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-30T14:23:42.371985Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:13:38.109Z",
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          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/08/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/x509",
          "product": "crypto/x509",
          "programRoutines": [
            {
              "name": "alreadyInChain"
            },
            {
              "name": "Certificate.Verify"
            }
          ],
          "vendor": "Go standard library",
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              "lessThan": "1.24.8",
              "status": "affected",
              "version": "0",
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      ],
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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      "title": "Panic when validating certificates with DSA public keys in crypto/x509"
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}

Vulnerability from cleanstart

Tags

Sightings

Nomenclature

Action not permitted

Vulnerability from cleanstart

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Tags

Sightings

Nomenclature