CVE-2025-47910 (GCVE-0-2025-47910)

Vulnerability from cvelistv5 – Published: 2025-09-22 21:01 – Updated: 2025-09-24 13:29
VLAI?
Title
CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http
Summary
When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections.
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE
  • CWE-284 - Improper Access Control
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library net/http Affected: 1.25.0 , < 1.25.1 (semver)
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
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                "options": [
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                "timestamp": "2025-09-24T13:29:38.364534Z",
                "version": "2.0.3"
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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": "net/http",
          "product": "net/http",
          "programRoutines": [
            {
              "name": "CrossOriginProtection.AddInsecureBypassPattern"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.1",
              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
            }
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      "descriptions": [
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          "lang": "en",
          "value": "When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections."
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      ],
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              "description": "CWE-284: Improper Access Control",
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        "dateUpdated": "2025-09-22T21:01:55.440Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
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      "references": [
        {
          "url": "https://go.dev/cl/699275"
        },
        {
          "url": "https://go.dev/issue/75054"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/PtW9VW21NPs/m/DJhMQ-m5AQAJ"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-3955"
        }
      ],
      "title": "CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http"
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    "datePublished": "2025-09-22T21:01:55.440Z",
    "dateReserved": "2025-05-13T23:31:29.597Z",
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    "state": "PUBLISHED"
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  • 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.



Detection rules are retrieved from Rulezet.