GHSA-gv8r-9rw9-9697: Github.com/traefik/traefik Traefik Affected By TLS ClientAuth Vulnerability

Q: What is GHSA-gv8r-9rw9-9697?

GHSA-gv8r-9rw9-9697 is a security vulnerability in Github.com/traefik/traefik involving Traefik affected by TLS ClientAuth Bypass on HTTP/3 under CWE-1395: Dependency on Vulnerable Third-Party Component.

Q: Which Github.com/traefik/traefik versions are affected?

Affected versions include releases prior to 2.11.37, 3.6.8 across affected packages: github.com/traefik/traefik, github.com/traefik/traefik/v2, github.com/traefik/traefik/v3.

Q: What version fixes GHSA-gv8r-9rw9-9697?

Upgrading to 2.11.37, 3.6.8 (or the latest patched release for your respective branch) resolves the vulnerability.

Q: Is github.com/traefik/traefik affected?

Yes, github.com/traefik/traefik is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.

Q: Is github.com/traefik/traefik/v2 affected?

Yes, github.com/traefik/traefik/v2 is affected in releases prior to 2.11.37. Upgrade your dependency to 2.11.37 or later.

Q: What is the CVSS score of GHSA-gv8r-9rw9-9697?

GHSA-gv8r-9rw9-9697 has a CVSS v3.1 base score of 10.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Q: What CWE is associated with GHSA-gv8r-9rw9-9697?

GHSA-gv8r-9rw9-9697 is classified under CWE-1395: Dependency on Vulnerable Third-Party Component (The product has a dependency on a third-party component that contains one or more known vulnerabilities.).

Q: How can I check Go dependencies for GHSA-gv8r-9rw9-9697?

Run the dependency tree command: 'inspect dependencies for github.com/traefik/traefik'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

HIGH

CVSS 10.0

CWE-1395

Published 2026-02-20

Advisory Summary

GHSA-gv8r-9rw9-9697 is a HIGH (CVSS 10.0) traefik affected by tls clientauth vulnerability (CWE-1395: Dependency on Vulnerable Third-Party Component) affecting Github.com/traefik/traefik libraries in the Go ecosystem. The issue involves traefik affected by tls clientauth bypass on http/3. Remediation is available by upgrading affected packages to version 2.11.37, 3.6.8.

GHSA-gv8r-9rw9-9697 at a Glance

CVE Identifier N/A

GHSA Identifier GHSA-gv8r-9rw9-9697

Severity HIGH

CVSS v3.1 Base Score 10.0

CWE Classification CWE-1395: Dependency on Vulnerable Third-Party Component

Affected Product Github.com/traefik/traefik

Package Ecosystem Go

Published Date 2026-02-20

Last Updated 2026-03-11

Security Impact

CVSS: 10.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).

Attack Vector Network (AV:N)

Attack Complexity Low (AC:L)

Privileges Required None (PR:N)

User Interaction None (UI:N)

Scope Changed (S:C)

Confidentiality High (C:H)

Integrity High (I:H)

Availability None (A:N)

How to Fix GHSA-gv8r-9rw9-9697

To remediate this vulnerability, upgrade all affected Github.com/traefik/traefik dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/traefik/traefik fixed: Latest secure release

Upgrade github.com/traefik/traefik to Latest secure release

github.com/traefik/traefik/v2 fixed: 2.11.37

Upgrade github.com/traefik/traefik/v2 to 2.11.37

github.com/traefik/traefik/v3 fixed: 3.6.8

Upgrade github.com/traefik/traefik/v3 to 3.6.8

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for github.com/traefik/traefik

How to Check if You Are Affected

To determine whether your application is affected by GHSA-gv8r-9rw9-9697, inspect your project dependencies for Github.com/traefik/traefik:

inspect dependencies for github.com/traefik/traefik

Analyze the terminal output to locate any version of Github.com/traefik/traefik in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.11.37), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1395: Dependency on Vulnerable Third-Party Component, where the product has a dependency on a third-party component that contains one or more known vulnerabilities. In Github.com/traefik/traefik, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary There is a potential vulnerability in Traefik managing HTTP/3 connections. More details in the [CVE-2025-68121](https://nvd.nist.gov/vuln/detail/CVE-2025-68121). ## Patches - https://github.com/traefik/traefik/releases/tag/v2.11.37 - https://github.com/traefik/traefik/releases/tag/v3.6.8 ## Workarounds No workaround ## For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).

GHSA-gv8r-9rw9-9697 Affected Github.com/traefik/traefik Versions

3 component(s)

Fixed Versions:

2.11.373.6.8

Product / Package	Ecosystem	Affected Versions	Fixed Version
github.com/traefik/traefik golang/github.com/traefik/traefik	Go	≤ 1.7.34
github.com/traefik/traefik/v2 golang/github.com/traefik/traefik/v2	Go	< 2.11.37	2.11.37
github.com/traefik/traefik/v3 golang/github.com/traefik/traefik/v3	Go	< 3.6.8	3.6.8

References

GitHub Advisory / Wiki ADVISORY

https://github.com/traefik/traefik/security/advisories/GHSA-gv8r-9rw9-9697

Github.com/traefik/traefik Source Repository REPOSITORY

https://github.com/traefik/traefik

Frequently Asked Questions

What is GHSA-gv8r-9rw9-9697?

GHSA-gv8r-9rw9-9697 is a security vulnerability in Github.com/traefik/traefik involving Traefik affected by TLS ClientAuth Bypass on HTTP/3 under CWE-1395: Dependency on Vulnerable Third-Party Component.

Which Github.com/traefik/traefik versions are affected?

Affected versions include releases prior to 2.11.37, 3.6.8 across affected packages: github.com/traefik/traefik, github.com/traefik/traefik/v2, github.com/traefik/traefik/v3.

What version fixes GHSA-gv8r-9rw9-9697?

Upgrading to 2.11.37, 3.6.8 (or the latest patched release for your respective branch) resolves the vulnerability.

Is github.com/traefik/traefik affected?

Yes, github.com/traefik/traefik is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.

Is github.com/traefik/traefik/v2 affected?

Yes, github.com/traefik/traefik/v2 is affected in releases prior to 2.11.37. Upgrade your dependency to 2.11.37 or later.

What is the CVSS score of GHSA-gv8r-9rw9-9697?

GHSA-gv8r-9rw9-9697 has a CVSS v3.1 base score of 10.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

What CWE is associated with GHSA-gv8r-9rw9-9697?

GHSA-gv8r-9rw9-9697 is classified under CWE-1395: Dependency on Vulnerable Third-Party Component (The product has a dependency on a third-party component that contains one or more known vulnerabilities.).

How can I check Go dependencies for GHSA-gv8r-9rw9-9697?

Run the dependency tree command: 'inspect dependencies for github.com/traefik/traefik'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gv8r-9rw9-9697",
  "modified" : "2026-03-11T20:35:09Z",
  "published" : "2026-02-20T21:14:27Z",
  "aliases" : [ ],
  "summary" : "Traefik affected by TLS ClientAuth Bypass on HTTP/3",
  "details" : "### Summary\n\nThere is a potential vulnerability in Traefik managing HTTP/3 connections.\n\nMore details in the [CVE-2025-68121](https://nvd.nist.gov/vuln/detail/CVE-2025-68121).\n\n## Patches\n\n- https://github.com/traefik/traefik/releases/tag/v2.11.37\n- https://github.com/traefik/traefik/releases/tag/v3.6.8\n\n## Workarounds\n\nNo workaround\n\n## For more information\n\nIf you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/traefik/traefik"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.7.34"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/traefik/traefik/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.11.37"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.11.36"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/traefik/traefik/v3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.6.8"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.6.7"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/traefik/traefik/security/advisories/GHSA-gv8r-9rw9-9697"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/traefik/traefik"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1395" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-20T21:14:27Z",
    "nvd_published_at" : null
  }
}

CVSS V3

10.0 HIGH