SUSE CVE-2026-35051

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issu...

CVE-2026-41263

CVE-2026-41263 affects Traefik’s BasicAuth middleware. A timing side-channel allows an attacker to enumerate valid usernames by measuring response times, because the constant-time fallback secret resolves to an empty string, causing the bcrypt check to short-circuit quickly. Vulnerable versions a...

CVE-2026-35051

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issu...

CVE-2026-35051 Traefik: ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass auth

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issu...

CVE-2026-35051

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issu...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Vulnerabilities exist in versions prior to Traefik 2.11.43, 3.6.14, and 3.7.0-rc.2. These vulnerabilities stem from incomplete isolation of Kubernetes CRD-provided programs across namespaces, and lack restrictio...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions prior to Traefik 2.11.43, 3.6.14, and 3.7.0-rc.2 contain security vulnerabilities. These vulnerabilities stem from variables used in the BasicAuth middleware for constant-time comparisons, which are...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. There were security vulnerabilities in versions prior to Traefik 2.11.43, 3.6.14, and 3.7.0-rc.2. These vulnerabilities stemmed from the StripPrefixRegex middleware, which, when used in conjunction with...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the BasicAuth process. An attacker can enumerate valid usernames by measuring authentication response times, exploiting differences in processing between existing and non-existing users. Remediation Upgrade...

Use of Incorrectly-Resolved Name or Reference

Overview Affected versions of this package are vulnerable to Use of Incorrectly-Resolved Name or Reference in StripPrefixRegex, when used together with ForwardAuth, BasicAuth, or DigestAuth. An attacker can gain unauthorized access to protected backend resources by sending requests with...

Use of Incorrectly-Resolved Name or Reference

Overview Affected versions of this package are vulnerable to Use of Incorrectly-Resolved Name or Reference in StripPrefixRegex, when used together with ForwardAuth, BasicAuth, or DigestAuth. An attacker can gain unauthorized access to protected backend resources by sending requests with...

Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function in the ServeHTTP function, which does not sufficiently sanitize X- alias headers. An attacker can gain unauthenticated access to protected endpoints by injecting spoofed trust context with...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview github.com/traefik/traefik/v2/pkg/middlewares/auth is a Cloud Native Application Proxy. Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a...

PT-2026-36177

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 2.11.43 Traefik versions prior to 3.6.14 Traefik versions prior to 3.7.0-rc.2 Description An authentication bypass exists in the ForwardAuth middleware of Traefik, an HTTP reverse proxy and load balancer. This occurs...

PT-2026-36179

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 2.11.43 Traefik versions prior to 3.6.14 Traefik versions prior to 3.7.0-rc.2 Description An authentication bypass exists in the StripPrefixRegex middleware when used with ForwardAuth, BasicAuth, or DigestAuth. The...