{"schema":"threatline.record/2","record":{"id":"CVE-2026-114656","aliases":["GHSA-2272-4vv8-65ww"],"summary":"Traefik before 2.11.58 and 3.7.13 mTLS Bypass via Negated Host Matcher","details":"Traefik before 2.11.58 and 3.7.13 contains an authentication bypass vulnerability that allows unauthenticated clients to skip client-certificate checks because negated Host matchers are counted as served domains. Attackers can reach backends protected by RequireAndVerifyClientCert when a router rule with !Host() creates a TLS options conflict that falls back to the default options.","categories":["Unclassified"],"product":"traefik","vendor":"traefik","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-114656","source_modified_at":"2026-10-22T01:43:42.056Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"traefik","vendor":"traefik","versions":[{"version":"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-2026-114656","source_modified_at":"2026-10-22T01:43:42.056Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"traefik","vendor":"traefik","versions":[{"version":"3.0.0","status":"affected","versionType":"semver","lessThan":"3.7.13"},{"version":"3.7.13","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-114656","source_modified_at":"2026-10-22T01:43:42.056Z","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-2026-114656","source_modified_at":"2026-10-22T01:43:42.056Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"traefik","ecosystem":null},"version":"3.7.13","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00163,"percentile":0.05177,"score_date":"2026-10-23"},"published_at":"2026-10-22T01:43:42.056Z","modified_at":"2026-10-22T01:43:42.056Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-114656","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-22T01:43:42.056Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-114656","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-2272-4vv8-65ww","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/traefik-before-2.11.58-and-3.7.13-mtls-bypass-via-negated-host-matcher","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":"2026-10-22T01:43:42.056Z","content_hash":"95ff6e09dfaac12f284004a990eb47fd8d2a218825de982c2c9152154b3ebb58"}}