{"id":"CVE-2026-119573","aliases":[],"cve":{"records":[{"id":"CVE-2026-119573","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-30T10:56:15.489Z","published":"2026-10-30T13:18:12.280Z","modified":"2026-10-30T15:53:49.154Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-30T13:18:12.280Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T15:53:49.154Z"}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-28hp-c82p-8vqj","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/traefik-3.7.11-before-3.7.15-cross-namespace-authorization-bypass-via-auth-tls-secret","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-863","description":"Incorrect Authorization","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7.11","versionEndExcluding":"3.7.15"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T15:21:12.918975Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Traefik 3.7.11 before 3.7.15 Cross-Namespace Authorization Bypass via auth-tls-secret","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"Traefik 3.7.11 before 3.7.15 contains an authorization bypass in the Kubernetes Ingress NGINX provider that skips the cross-namespace check on the auth-tls-secret annotation when a cached client authentication TLS option is reused. Users who can create Ingresses can reference another namespace's CA secret already used by another Ingress, enforcing it on their own routes and learning whether it exists, without disclosure of its contents.","score":4.4,"severity":"medium","published":"2026-10-30T13:18:12.280Z","modified":"2026-10-30T15:53:49.154Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"traefik","name":"traefik","platforms":[],"versions":[{"version":"3.7.11","status":"affected","lessThan":"3.7.15","versionType":"semver"},{"version":"3.7.15","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/traefik/traefik/v3","packageIdentity":{"ecosystem":"Go","name":"github.com/traefik/traefik/v3"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-119573"}],"remediation":[],"references":["https://github.com/traefik/traefik/security/advisories/GHSA-28hp-c82p-8vqj","https://www.vulncheck.com/advisories/traefik-3.7.11-before-3.7.15-cross-namespace-authorization-bypass-via-auth-tls-secret"],"sources":[{"name":"CVE","id":"CVE-2026-119573","modified":"2026-10-30T15:53:49.154Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119573"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N","score":2.1},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","score":4.4}],"sourceAffected":[],"observedAt":"2026-10-30T15:58:29.680Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T04:10:31.776Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T15:25:35.543Z","attemptedAt":"2026-10-30T15:25:35.543Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-30T15:25:35.459Z","attemptedAt":"2026-10-30T15:25:35.459Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T15:25:36.248Z","attemptedAt":"2026-10-30T15:25:36.248Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T15:25:35.244Z","attemptedAt":"2026-10-30T15:25:35.244Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-119573","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119573","modified":"2026-10-30T14:16:46.407","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-30T15:25:35.543Z"},{"source":"NVD","id":"CVE-2026-119573","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119573","modified":"2026-10-30T14:16:46.407","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","checkedAt":"2026-10-30T15:25:35.543Z"},{"source":"ENISA EUVD","id":"EUVD-2026-113927","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113927","modified":"Oct 30, 2026, 1:18:12 PM","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N","checkedAt":"2026-10-30T15:25:36.248Z"}],"aiSummary":{"text":"Traefik versions 3.7.11 before 3.7.15 contain an authorization bypass vulnerability, allowing users who can create Ingresses to reference another namespace's CA secret. This occurs when a cached client authentication TLS option is reused, skipping the cross-namespace check. Users can learn if a secret exists without disclosing its contents.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T15:06:06.174Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119573"}]}}