CVE-2026-112778 Traefik before 2.11.46, 3.6.17, and 3.7.1 Cross-Namespace Resource Reference via Kubernetes Annotations

Traefik before 2.11.46, 3.x before 3.6.17, and 3.7.0 lack namespace validation for Ingress and Service annotations in the Kubernetes Ingress provider, allowing references to Middlewares, ServersTransports, and TLSOptions in other namespaces. Attackers able to create or update Ingress or Service...

CVE-2026-112778

Traefik versions before 2.11.46 , 3.x before 3.6.17 , and 3.7.0 are vulnerable to a Cross-Namespace Resource Reference in the Kubernetes Ingress provider. The root cause is a lack of namespace validation for Ingress and Service annotations. This allows an attacker with permissions to create or up...