{"schema":"threatline.record/2","record":{"id":"CVE-2026-114639","aliases":["GHSA-qm9f-w54v-q2qh"],"summary":"Traefik before 2.11.58 and 3.7.14 Authentication Bypass via Negotiate Connection Pool","details":"Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on separate frontend connections can be assigned that NTLM/Kerberos-bound socket and perform reads or writes with the victim's identity.","categories":["Unclassified"],"product":"traefik","vendor":"traefik","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-114639","source_modified_at":"2026-10-22T01:43:39.232Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"traefik","vendor":"traefik","versions":[{"version":"2.11.0","status":"affected","versionType":"semver","lessThan":"2.11.58"},{"version":"2.11.58","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-114639","source_modified_at":"2026-10-22T01:43:39.232Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"traefik","vendor":"traefik","versions":[{"version":"3.0.0","status":"affected","versionType":"semver","lessThan":"3.7.14"},{"version":"3.7.14","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-114639","source_modified_at":"2026-10-22T01:43:39.232Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"traefik","ecosystem":null},"version":"2.11.58","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-114639","source_modified_at":"2026-10-22T01:43:39.232Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"traefik","ecosystem":null},"version":"3.7.14","basis":"first unaffected version stated in the CVE record"}],"cvss":7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00311,"percentile":0.22716,"score_date":"2026-10-23"},"published_at":"2026-10-22T01:43:39.232Z","modified_at":"2026-10-22T01:43:39.232Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-114639","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-22T01:43:39.232Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-114639","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/traefik/traefik/security/advisories/GHSA-qm9f-w54v-q2qh","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/traefik-before-2.11.58-and-3.7.14-authentication-bypass-via-negotiate-connection-pool","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-22T01:43:39.232Z","content_hash":"bb9ab2ed4f7c719792ae10a879e156ce45aa71bad135af780882ee36e8afe14a"}}