CVE-2026-65602
CVE-2026-65602 · Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 5.3 · Media · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: web
Productos y versiones afectados
Fuentes originales
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-65602