CVE-2026-88877

Traefik is a HTTP reverse proxy and load balancer. In versions = v3.7.0 and = v3.7.11, the Kubernetes ingress-nginx provider mishandles Ingresses that carry both an authentication annotation and the nginx.ingress.kubernetes.io/from-to-www-redirect annotation. For such Ingresses the provider creat...

EUVD-2026-75427

Traefik is a HTTP reverse proxy and load balancer. In versions = v3.7.0 and = v3.7.11, the Kubernetes ingress-nginx provider mishandles Ingresses that carry both an authentication annotation and the nginx.ingress.kubernetes.io/from-to-www-redirect annotation. For such Ingresses the provider creat...

PT-2026-89388

Traefik is a HTTP reverse proxy and load balancer. In versions = v3.7.0 and = v3.7.11, the Kubernetes ingress-nginx provider mishandles Ingresses that carry both an authentication annotation and the nginx.ingress.kubernetes.io/from-to-www-redirect annotation. For such Ingresses the provider creat...

CVE-2026-85596 Traefik v3.7 Authentication Bypass via TLS Option Conflict

Traefik versions = v3.7.0 and = v3.7.10 contain an authentication bypass in the Kubernetes Ingress NGINX provider. The TLS option generated for an Ingress carrying the nginx.ingress.kubernetes.io/auth-tls-secret annotation was named after the Ingress namespace and name. As a result, two Ingress...

CVE-2026-85596

Traefik v3.7.0–v3.7.10 contains an authentication bypass in the Kubernetes Ingress NGINX provider . The TLS option for an Ingress annotated with nginx.ingress.kubernetes.io/auth-tls-secret is named after the Ingress namespace and name. When two Ingress objects share the same host, client CA secre...

EUVD-2025-201730

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend TLS certificate verification actually disables...

GHSA-7VWW-MVCR-X6VJ Traefik Inverted TLS Verification Logic in ingress-nginx Provider

Impact There is a potential vulnerability in Traefik NGINX provider managing the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. The provider inverts the semantics of the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend T...