{"id":"CVE-2026-119572","state":"PUBLISHED","title":"Traefik 3.7.0-ea.1 before 3.7.15 mTLS Bypass via Ingress NGINX Provider","description":"Traefik from 3.7.0-ea.1 before 3.7.15 contains an authentication bypass vulnerability in the Kubernetes Ingress NGINX provider that silently disables mTLS configured via the auth-tls-secret annotation. When another Ingress declares a path on the same host without matching auth-tls settings, Traefik falls back to default TLS options, letting unauthenticated attackers reach backends requiring client certificates.","publishedAt":"2026-10-30T13:18:11.594Z","updatedAt":"2026-10-30T13:18:11.594Z","severity":{"score":7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["traefik traefik"],"affected":[{"vendor":"traefik","product":"traefik","packageURL":"pkg:golang/github.com/traefik/traefik/v3","defaultStatus":"unaffected","versions":[{"version":"3.7.0-ea.1","status":"affected","lessThan":"3.7.15","versionType":"semver"},{"version":"3.7.15","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/traefik/traefik/security/advisories/GHSA-p8wx-ph99-xgcr","https://www.vulncheck.com/advisories/traefik-3.7.0-ea.1-before-3.7.15-mtls-bypass-via-ingress-nginx-provider"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-30T13:22:06.632Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119572.json","commit":"abd2ae26f2ff440b8bdf0bfcfbf8e5180068914a","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119572","state":"PUBLISHED","datePublished":"2026-10-30T13:18:11.594Z","dateUpdated":"2026-10-30T13:18:11.594Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-30T10:56:15.489Z"},"containers":{"cna":{"title":"Traefik 3.7.0-ea.1 before 3.7.15 mTLS Bypass via Ingress NGINX Provider","descriptions":[{"lang":"en","value":"Traefik from 3.7.0-ea.1 before 3.7.15 contains an authentication bypass vulnerability in the Kubernetes Ingress NGINX provider that silently disables mTLS configured via the auth-tls-secret annotation. When another Ingress declares a path on the same host without matching auth-tls settings, Traefik falls back to default TLS options, letting unauthenticated attackers reach backends requiring client certificates."}],"affected":[{"vendor":"traefik","product":"traefik","packageURL":"pkg:golang/github.com/traefik/traefik/v3","defaultStatus":"unaffected","versions":[{"version":"3.7.0-ea.1","status":"affected","lessThan":"3.7.15","versionType":"semver"},{"version":"3.7.15","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-p8wx-ph99-xgcr","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-p8wx-ph99-xgcr)"},{"url":"https://www.vulncheck.com/advisories/traefik-3.7.0-ea.1-before-3.7.15-mtls-bypass-via-ingress-nginx-provider","name":"VulnCheck Advisory: Traefik 3.7.0-ea.1 before 3.7.15 mTLS Bypass via Ingress NGINX Provider","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-30T13:18:11.594Z"},"datePublic":"2026-10-16T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7.0-ea.1","versionEndExcluding":"3.7.15"}]}]}],"credits":[{"lang":"en","value":"ba-am","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}