Auth bypass in Traefik

CVE-2026-54761

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.21 and 3.7.5, there is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declar…

Affected products

  • Traefik — versions < 3.6.21, >= 3.7.0-ea.1, < 3.7.5

Weakness classification (CWE)

References