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Vulnerability from cleanstart
Published
2026-06-08 14:19
Modified
2026-06-03 11:29
Summary
Security fixes for CVE-2026-25680, CVE-2026-25681, CVE-2026-27136, CVE-2026-27145, CVE-2026-29181, CVE-2026-33186, CVE-2026-39821, CVE-2026-39824, CVE-2026-39827, CVE-2026-39828, CVE-2026-39829, CVE-2026-39830, CVE-2026-39831, CVE-2026-39832, CVE-2026-39833, CVE-2026-39834, CVE-2026-39835, CVE-2026-42502, CVE-2026-42504, CVE-2026-42506, CVE-2026-42507, CVE-2026-42508, CVE-2026-46595, CVE-2026-46597, CVE-2026-46598, ghsa-mh2q-q3fh-2475 applied in versions: 0.55.1-r0, 0.57.0-r0
Details
Multiple security vulnerabilities affect the cadvisor package. These issues are resolved in later releases. See references for individual vulnerability details.
{
"affected": [
{
"package": {
"ecosystem": "CleanStart",
"name": "cadvisor"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.57.0-r0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"credits": [],
"database_specific": {},
"details": "Multiple security vulnerabilities affect the cadvisor package. These issues are resolved in later releases. See references for individual vulnerability details.",
"id": "CLEANSTART-2026-KJ72865",
"modified": "2026-06-03T11:29:52Z",
"published": "2026-06-08T14:19:07.431067Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-KJ72865.json"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-25680"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-25681"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-27136"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-27145"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-29181"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-33186"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39821"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39824"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39827"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39828"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39829"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39830"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39831"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39832"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39833"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39834"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39835"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-42502"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-42504"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-42506"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-42507"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-42508"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-46595"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-46597"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-46598"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-mh2q-q3fh-2475"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25680"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25681"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27136"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27145"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29181"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39821"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39824"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39827"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39828"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39829"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39830"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39831"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39832"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39833"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39834"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39835"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42502"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42504"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42506"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42507"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42508"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46595"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46597"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46598"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes for CVE-2026-25680, CVE-2026-25681, CVE-2026-27136, CVE-2026-27145, CVE-2026-29181, CVE-2026-33186, CVE-2026-39821, CVE-2026-39824, CVE-2026-39827, CVE-2026-39828, CVE-2026-39829, CVE-2026-39830, CVE-2026-39831, CVE-2026-39832, CVE-2026-39833, CVE-2026-39834, CVE-2026-39835, CVE-2026-42502, CVE-2026-42504, CVE-2026-42506, CVE-2026-42507, CVE-2026-42508, CVE-2026-46595, CVE-2026-46597, CVE-2026-46598, ghsa-mh2q-q3fh-2475 applied in versions: 0.55.1-r0, 0.57.0-r0",
"upstream": [
"CVE-2026-25680",
"CVE-2026-25681",
"CVE-2026-27136",
"CVE-2026-27145",
"CVE-2026-29181",
"CVE-2026-33186",
"CVE-2026-39821",
"CVE-2026-39824",
"CVE-2026-39827",
"CVE-2026-39828",
"CVE-2026-39829",
"CVE-2026-39830",
"CVE-2026-39831",
"CVE-2026-39832",
"CVE-2026-39833",
"CVE-2026-39834",
"CVE-2026-39835",
"CVE-2026-42502",
"CVE-2026-42504",
"CVE-2026-42506",
"CVE-2026-42507",
"CVE-2026-42508",
"CVE-2026-46595",
"CVE-2026-46597",
"CVE-2026-46598",
"ghsa-mh2q-q3fh-2475"
]
}
CVE-2026-39827 (GCVE-0-2026-39827)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:35
VLAI?
EPSS
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)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
Ziyan Zhou
{
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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}
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{
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{
"url": "https://go.dev/cl/781320"
},
{
"url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-5016"
}
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"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
VLAI?
EPSS
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)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
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
{
"containers": {
"adp": [
{
"metrics": [
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
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},
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}
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"timestamp": "2026-05-22T18:50:30.848292Z",
"version": "2.0.3"
},
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}
}
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"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": "channel.WriteExtended"
},
{
"name": "Dial"
},
{
"name": "NewClientConn"
},
{
"name": "NewServerConn"
},
{
"name": "Session.CombinedOutput"
},
{
"name": "Session.Output"
},
{
"name": "Session.Run"
},
{
"name": "Session.Shell"
},
{
"name": "Session.Start"
},
{
"name": "channel.Write"
},
{
"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": "extChannel.Write"
},
{
"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": "NCC Group Cryptography Services, sponsored by Teleport"
}
],
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{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-190: Integer Overflow or Wraparound",
"lang": "en"
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},
{
"url": "https://go.dev/cl/781663"
},
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"url": "https://pkg.go.dev/vuln/GO-2026-5020"
}
],
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}
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"state": "PUBLISHED"
},
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CVE-2026-42508 (GCVE-0-2026-42508)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-03 12:05
VLAI?
EPSS
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)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/knownhosts |
Affected:
0 , < 0.52.0
(semver)
|
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{
"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"
}
},
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}
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"timestamp": "2026-05-22T18:43:40.584666Z",
"version": "2.0.3"
},
"type": "ssvc"
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}
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:advanced_cluster_security:4.10::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Advanced Cluster Security for Kubernetes 4.10",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:advanced_cluster_security:4.9::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Advanced Cluster Security for Kubernetes 4.9",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift_builds:1"
],
"defaultStatus": "affected",
"product": "Builds for Red Hat OpenShift",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:external_secrets_operator:1"
],
"defaultStatus": "affected",
"product": "External Secrets Operator for Red Hat OpenShift",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:multicluster_engine"
],
"defaultStatus": "affected",
"product": "Multicluster Engine for Kubernetes",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift_api_data_protection:1"
],
"defaultStatus": "affected",
"product": "OpenShift API for Data Protection",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:serverless:1"
],
"defaultStatus": "affected",
"product": "OpenShift Serverless",
"vendor": "Red Hat"
},
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CVE-2026-29181 (GCVE-0-2026-29181)
Vulnerability from cvelistv5 – Published: 2026-04-07 20:29 – Updated: 2026-06-30 12:07
VLAI?
EPSS
Title
OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)
Summary
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.
Severity ?
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| open-telemetry | opentelemetry-go |
Affected:
>= 1.36.0, < 1.41.0
|
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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
VLAI?
EPSS
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)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
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
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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
VLAI?
EPSS
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)
CWE
- CWE-281 - Improper Preservation of Permissions
Assigner
References
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
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CVE-2026-42504 (GCVE-0-2026-42504)
Vulnerability from cvelistv5 – Published: 2026-06-02 22:01 – Updated: 2026-06-26 20:22
VLAI?
EPSS
Title
Quadratic complexity in WordDecoder.DecodeHeader in mime
Summary
Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.
Severity ?
7.5 (High)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | mime |
Affected:
0 , < 1.25.11
(semver)
Affected: 1.26.0-0 , < 1.26.4 (semver) |
Credits
p4p3r (https://hackerone.com/p4p3r_hak)
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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
VLAI?
EPSS
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)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
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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
VLAI?
EPSS
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)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
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
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CVE-2026-46598 (GCVE-0-2026-46598)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:14
VLAI?
EPSS
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)
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
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|---|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/agent |
Affected:
0 , < 0.52.0
(semver)
|
Credits
NCC Group Cryptography Services, sponsored by Teleport
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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
VLAI?
EPSS
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)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.55.0
(semver)
|
Credits
ensy
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CVE-2026-33186 (GCVE-0-2026-33186)
Vulnerability from cvelistv5 – Published: 2026-03-20 22:23 – Updated: 2026-07-03 12:04
VLAI?
EPSS
Title
gRPC-Go has an authorization bypass via missing leading slash in :path
Summary
gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 `:path` pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests where the `:path` omitted the mandatory leading slash (e.g., `Service/Method` instead of `/Service/Method`). While the server successfully routed these requests to the correct handler, authorization interceptors (including the official `grpc/authz` package) evaluated the raw, non-canonical path string. Consequently, "deny" rules defined using canonical paths (starting with `/`) failed to match the incoming request, allowing it to bypass the policy if a fallback "allow" rule was present. This affects gRPC-Go servers that use path-based authorization interceptors, such as the official RBAC implementation in `google.golang.org/grpc/authz` or custom interceptors relying on `info.FullMethod` or `grpc.Method(ctx)`; AND that have a security policy contains specific "deny" rules for canonical paths but allows other requests by default (a fallback "allow" rule). The vulnerability is exploitable by an attacker who can send raw HTTP/2 frames with malformed `:path` headers directly to the gRPC server. The fix in version 1.79.3 ensures that any request with a `:path` that does not start with a leading slash is immediately rejected with a `codes.Unimplemented` error, preventing it from reaching authorization interceptors or handlers with a non-canonical path string. While upgrading is the most secure and recommended path, users can mitigate the vulnerability using one of the following methods: Use a validating interceptor (recommended mitigation); infrastructure-level normalization; and/or policy hardening.
Severity ?
9.1 (Critical)
CWE
- CWE-285 - Improper Authorization
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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"value": "RHSA-2026:22689: multicluster engine for Kubernetes 2.8"
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"value": "RHSA-2026:18585: multicluster engine for Kubernetes 2.9"
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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
VLAI?
EPSS
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)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.55.0
(semver)
|
Credits
IPC Labs
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CVE-2026-27145 (GCVE-0-2026-27145)
Vulnerability from cvelistv5 – Published: 2026-06-02 22:01 – Updated: 2026-07-03 12:04
VLAI?
EPSS
Title
Inefficient candidate hostname parsing in crypto/x509
Summary
(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries. This caused strings.Split(host, ".") to execute repeatedly on the same input hostname. With a large DNS SAN list, verification costs scaled quadratically based on the number of SAN entries multiplied by the hostname's label count. Because x509.Verify validates hostnames before building the certificate chain, this overhead occurred even for untrusted certificates.
Severity ?
6.5 (Medium)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | crypto/x509 |
Affected:
0 , < 1.25.11
(semver)
Affected: 1.26.0-0 , < 1.26.4 (semver) |
Credits
Jakub Ciolek - https://ciolek.dev/
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CVE-2026-42507 (GCVE-0-2026-42507)
Vulnerability from cvelistv5 – Published: 2026-06-02 22:01 – Updated: 2026-06-03 19:04
VLAI?
EPSS
Title
Arbitrary inputs are included in errors without any escaping in net/textproto
Summary
When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged.
Severity ?
5.3 (Medium)
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Go standard library | net/textproto |
Affected:
0 , < 1.25.11
(semver)
Affected: 1.26.0-0 , < 1.26.4 (semver) |
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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
VLAI?
EPSS
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)
CWE
- CWE-833 - Deadlock
Assigner
References
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
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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
VLAI?
EPSS
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)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
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
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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
VLAI?
EPSS
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)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
Maciej Kawka
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},
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"name": "Dial"
},
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"name": "NewClientConn"
},
{
"name": "NewServerConn"
},
{
"name": "curve25519sha256.Client"
},
{
"name": "curve25519sha256.Server"
},
{
"name": "dhGEXSHA.Client"
},
{
"name": "dhGEXSHA.Server"
},
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"lang": "en",
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}
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"descriptions": [
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"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
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},
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],
"title": "Invoking byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh"
}
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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
VLAI?
EPSS
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)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
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
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CVE-2026-25681 (GCVE-0-2026-25681)
Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:46
VLAI?
EPSS
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)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.55.0
(semver)
|
Credits
ensy
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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
VLAI?
EPSS
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)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.55.0
(semver)
|
Credits
ensy
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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
VLAI?
EPSS
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)
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Assigner
References
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)
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},
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"vendor": "Red Hat"
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],
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"vendor": "Red Hat"
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CVE-2026-39824 (GCVE-0-2026-39824)
Vulnerability from cvelistv5 – Published: 2026-05-22 19:39 – Updated: 2026-05-27 13:31
VLAI?
EPSS
Title
Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows
Summary
NewNTUnicodeString does not check for string length overflow. When provided with a string that overflows the maximum size of a NTUnicodeString (a 16-bit number of bytes), it returns a truncated string rather than an error.
Severity ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/sys | golang.org/x/sys/windows |
Affected:
0 , < 0.44.0
(semver)
|
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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
VLAI?
EPSS
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)
CWE
- CWE-1176 - Inefficient CPU Computation
Assigner
References
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
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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
VLAI?
EPSS
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)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/net | golang.org/x/net/html |
Affected:
0 , < 0.55.0
(semver)
|
Credits
Tristan Madani
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"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-22T15:01:21.649Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/79572"
},
{
"url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
},
{
"url": "https://go.dev/cl/781701"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-5027"
}
],
"title": "Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2026-42502",
"datePublished": "2026-05-22T15:01:21.649Z",
"dateReserved": "2026-04-28T00:21:12.791Z",
"dateUpdated": "2026-05-22T17:17:20.637Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
GHSA-MH2Q-Q3FH-2475
Vulnerability from github – Published: 2026-04-07 20:12 – Updated: 2026-04-24 20:04
VLAI?
Summary
OpenTelemetry-Go: multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)
Details
multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. this allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit.
severity
HIGH (availability / remote request amplification)
relevant links
- repository: https://github.com/open-telemetry/opentelemetry-go
- pinned callsite: https://github.com/open-telemetry/opentelemetry-go/blob/1ee4a4126dbdd1bc79e9fae072fa488beffac52a/propagation/baggage.go#L58
vulnerability details
pins: open-telemetry/opentelemetry-go@1ee4a4126dbdd1bc79e9fae072fa488beffac52a as-of: 2026-02-04 policy: direct (no program scope provided)
callsite: propagation/baggage.go:58 (extractMultiBaggage)
attacker control: inbound HTTP request headers (many baggage field-values) → propagation.HeaderCarrier.Values("baggage") → repeated baggage.Parse + member aggregation
root cause
extractMultiBaggage iterates over all baggage header field-values and parses each one independently, then appends members into a shared slice. the 8192-byte parsing cap applies per header value, but the multi-value path repeats that work once per header line (bounded only by the server/proxy header byte limit).
impact
in a default net/http configuration (max header bytes 1mb), a single request with many baggage: header field-values can cause large per-request allocations and increased latency.
example from the attached PoC harness (darwin/arm64; 80 values; 40 requests):
- canonical:
per_req_alloc_bytes=10315458andp95_ms=7 - control:
per_req_alloc_bytes=133429andp95_ms=0
proof of concept
canonical:
mkdir -p poc
unzip poc.zip -d poc
cd poc
make test
output (excerpt):
[CALLSITE_HIT]: propagation/baggage.go:58 extractMultiBaggage
[PROOF_MARKER]: baggage_multi_value_amplification p95_ms=7 per_req_alloc_bytes=10315458 per_req_allocs=16165
control:
cd poc
make control
control output (excerpt):
[NC_MARKER]: baggage_single_value_baseline p95_ms=0 per_req_alloc_bytes=133429 per_req_allocs=480
expected: multiple baggage header field-values should be semantically equivalent to a single comma-joined baggage value and should not multiply parsing/alloc work within the effective header byte budget.
actual: multiple baggage header field-values trigger repeated parsing and member aggregation, causing high per-request allocations and increased latency even when each individual value is within 8192 bytes.
fix recommendation
avoid repeated parsing across multi-values by enforcing a global budget and/or normalizing multi-values into a single value before parsing. one mitigation approach is to treat multi-values as a single comma-joined string and cap total parsed bytes (for example 8192 bytes total).
fix accepted when: under the default PoC harness settings, canonical stays within 2x of control for per_req_alloc_bytes and per_req_allocs, and p95_ms stays below 2ms.
Severity ?
7.5 (High)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.40.0"
},
"package": {
"ecosystem": "Go",
"name": "go.opentelemetry.io/otel"
},
"ranges": [
{
"events": [
{
"introduced": "1.36.0"
},
{
"fixed": "1.41.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-29181"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-07T20:12:57Z",
"nvd_published_at": "2026-04-07T21:17:16Z",
"severity": "HIGH"
},
"details": "multi-value `baggage:` header extraction parses each header field-value independently and aggregates members across values. this allows an attacker to amplify cpu and allocations by sending many `baggage:` header lines, even when each individual value is within the 8192-byte per-value parse limit.\n\n## severity\n\nHIGH (availability / remote request amplification)\n\n## relevant links\n\n- repository: https://github.com/open-telemetry/opentelemetry-go\n- pinned callsite: https://github.com/open-telemetry/opentelemetry-go/blob/1ee4a4126dbdd1bc79e9fae072fa488beffac52a/propagation/baggage.go#L58\n\n## vulnerability details\n\n**pins:** open-telemetry/opentelemetry-go@1ee4a4126dbdd1bc79e9fae072fa488beffac52a\n**as-of:** 2026-02-04\n**policy:** direct (no program scope provided)\n\n**callsite:** propagation/baggage.go:58 (`extractMultiBaggage`)\n**attacker control:** inbound HTTP request headers (many `baggage` field-values) \u2192 `propagation.HeaderCarrier.Values(\"baggage\")` \u2192 repeated `baggage.Parse` + member aggregation\n\n### root cause\n\n`extractMultiBaggage` iterates over all `baggage` header field-values and parses each one independently, then appends members into a shared slice. the 8192-byte parsing cap applies per header value, but the multi-value path repeats that work once per header line (bounded only by the server/proxy header byte limit).\n\n### impact\n\nin a default `net/http` configuration (max header bytes 1mb), a single request with many `baggage:` header field-values can cause large per-request allocations and increased latency.\n\nexample from the attached PoC harness (darwin/arm64; 80 values; 40 requests):\n\n- canonical: `per_req_alloc_bytes=10315458` and `p95_ms=7`\n- control: `per_req_alloc_bytes=133429` and `p95_ms=0`\n\n## proof of concept\n\ncanonical:\n\n```bash\nmkdir -p poc\nunzip poc.zip -d poc\ncd poc\nmake test\n```\n\noutput (excerpt):\n\n```\n[CALLSITE_HIT]: propagation/baggage.go:58 extractMultiBaggage\n[PROOF_MARKER]: baggage_multi_value_amplification p95_ms=7 per_req_alloc_bytes=10315458 per_req_allocs=16165\n```\n\ncontrol:\n\n```bash\ncd poc\nmake control\n```\n\ncontrol output (excerpt):\n\n```\n[NC_MARKER]: baggage_single_value_baseline p95_ms=0 per_req_alloc_bytes=133429 per_req_allocs=480\n```\n\n**expected:** multiple `baggage` header field-values should be semantically equivalent to a single comma-joined `baggage` value and should not multiply parsing/alloc work within the effective header byte budget.\n**actual:** multiple `baggage` header field-values trigger repeated parsing and member aggregation, causing high per-request allocations and increased latency even when each individual value is within 8192 bytes.\n\n## fix recommendation\n\navoid repeated parsing across multi-values by enforcing a global budget and/or normalizing multi-values into a single value before parsing. one mitigation approach is to treat multi-values as a single comma-joined string and cap total parsed bytes (for example 8192 bytes total).\n\n**fix accepted when:** under the default PoC harness settings, canonical stays within 2x of control for `per_req_alloc_bytes` and `per_req_allocs`, and `p95_ms` stays below 2ms.\n\n\n[poc.zip](https://github.com/user-attachments/files/25079945/poc.zip)\n[PR_DESCRIPTION.md](https://github.com/user-attachments/files/25079946/PR_DESCRIPTION.md)",
"id": "GHSA-mh2q-q3fh-2475",
"modified": "2026-04-24T20:04:24Z",
"published": "2026-04-07T20:12:57Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29181"
},
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/pull/7880"
},
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/commit/aa1894e09e3fe66860c7885cb40f98901b35277f"
},
{
"type": "PACKAGE",
"url": "https://github.com/open-telemetry/opentelemetry-go"
},
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.41.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "OpenTelemetry-Go: multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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