CVE-2026-67309

A flaw was found in Traefik. This path traversal vulnerability exists in the Kubernetes Ingress NGINX provider's RewriteTarget middleware. A remote attacker can craft a special request that uses dot-segment traversal to bypass authentication mechanisms like BasicAuth, DigestAuth, or ForwardAuth...

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...

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...

CVE-2026-88877: Authorization Bypass Through User-Controlled Key

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...

SUSE CVE-2026-85596

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 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...

EUVD-2026-71019

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 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 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 (Kubernetes Ingress NGINX provider, v3.7.0–v3.7.10) contains an authentication bypass . When two Ingress objects share the same host, client CA secret, and client-auth mode, the TLS options generated for each are named differently (by namespace/name), causing a TLS option conflict . ...

CVE-2026-85596: Improper Authentication

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-2026-67309: Improper Limitation of a Pathname to a Restricted Directory

Traefik versions = v3.7.0 and = v3.7.7 contain a path traversal vulnerability in the Kubernetes Ingress NGINX provider's RewriteTarget middleware generated from the nginx.ingress.kubernetes.io/rewrite-target annotation. When an Ingress path uses a regex that captures attacker-controlled text...

GO-2026-5128 Traefik Kubernetes Ingress NGINX provider fails open when auth-secret resolution fails in github.com/traefik/traefik

Traefik Kubernetes Ingress NGINX provider fails open when auth-secret resolution fails in github.com/traefik/traefik...

CVE-2026-54762: Not Failing Securely

Traefik is an HTTP reverse proxy and load balancer. From 3.7.0-ea.1 until 3.7.5, there is a medium severity vulnerability in Traefik's Kubernetes Ingress NGINX provider that causes affected routes to fail open. When an Ingress explicitly enables BasicAuth or DigestAuth through the supported...

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...

traefik -- Inverted TLS Verification Logic in Kubernetes NGINX Provider

The traefik project reports: 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" intendi...