{"id":"GHSA-gv8r-9rw9-9697","aliases":["GO-2026-4530"],"url":"https://o3.security/vulnerability/GHSA-gv8r-9rw9-9697","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).","published":"2026-02-20T21:14:27Z","modified":"2026-03-13T10:47:38.380633Z","cvss":{"score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/traefik/traefik","fixedVersion":null},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","fixedVersion":"2.11.37"},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","fixedVersion":"3.6.8"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/traefik/traefik/security/advisories/GHSA-gv8r-9rw9-9697"},{"type":"PACKAGE","url":"https://github.com/traefik/traefik"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-03-13T10:47:38.380633Z"}}