{"id":"EUVD-2026-47646","revision":"b3ebf75278194850ba08b4ebb8648c94","records":[{"revision":"b3ebf75278194850ba08b4ebb8648c94","observedAt":"2026-11-07T13:31:46.495+00:00","statement":{"source":"euvd","id":"EUVD-2026-47646","aliases":["CVE-2026-65602","GHSA-7m3p-wc52-rmc6","GHSA-42cj-m3vj-89wv"],"title":"Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references (the allowlist was only enforced for HTTP serversTransport references). A low…","description":"Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references (the allowlist was only enforced for HTTP serversTransport references). A low-privileged Kubernetes user in a namespace not listed in crossProviderNamespaces can set serversTransport: foo@file on an IngressRouteTCP service, causing Traefik to accept the forbidden cross-provider reference and use a file-provider TCPServersTransport — including privileged backend mTLS client certificates, SPIFFE identity, or PROXY-protocol settings. This is fixed in 3.6.23 and 3.7.7.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","score":5.3,"severity":null}],"references":["https://github.com/traefik/traefik/security/advisories/GHSA-42cj-m3vj-89wv","https://github.com/traefik/traefik/commit/26c96a3935cafb473f4a5bae1886560d9aa4e4f0","https://www.vulncheck.com/advisories/traefik-before-ingressroutetcp-serverstransport-namespace-bypass"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-47646","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 22, 2026, 11:21:48 AM","dateUpdated":"Oct 8, 2026, 3:23:55 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-47646","identifiers":["EUVD-2026-47646","CVE-2026-65602","GHSA-7m3p-wc52-rmc6","GHSA-42cj-m3vj-89wv"]},"retained":false,"historicalAffected":[]}],"coverage":[]}