CVE-2026-33433

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when headerField is configured with a non-canonical HTTP header name e.g., x-auth-user instead of X-Auth-User, an authenticated attacker can inject their own canonical version of that header to...

CVE-2026-33433

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when headerField is configured with a non-canonical HTTP header name e.g., x-auth-user instead of X-Auth-User, an authenticated attacker can inject their own canonical version of that header to...

CVE-2026-33433 Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when headerField is configured with a non-canonical HTTP header name e.g., x-auth-user instead of X-Auth-User, an authenticated attacker can inject their own canonical version of that header to...

CVE-2026-33433 Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when headerField is configured with a non-canonical HTTP header name e.g., x-auth-user instead of X-Auth-User, an authenticated attacker can inject their own canonical version of that header to...

CVE-2026-33433

CVE-2026-33433 affects Traefik prior to 2.11.42, 3.6.11, and 3.7.0-ea.3. A vulnerability in the BasicAuth/DigestAuth middlewares arises when headerField is configured with a non-canonical HTTP header name (for example x-auth-user). An authenticated attacker can inject a canonical version of that ...

CVE-2026-33433 Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when headerField is configured with a non-canonical HTTP header name e.g., x-auth-user instead of X-Auth-User, an authenticated attacker can inject their own canonical version of that header to...

CVE-2026-32695

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 3.6.11 and 3.7.0-ea.2, Traefik's Knative provider builds router rules by interpolating user-controlled values into backtick-delimited rule expressions without escaping. In live cluster validation, Knative rules.hosts was...

CVE-2026-32695 Traefik has Knative Ingress Rule Injection that Allows Host Restriction Bypass

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 3.6.11 and 3.7.0-ea.2, Traefik's Knative provider builds router rules by interpolating user-controlled values into backtick-delimited rule expressions without escaping. In live cluster validation, Knative rules.hosts was...

CVE-2026-32695

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 3.6.11 and 3.7.0-ea.2, Traefik's Knative provider builds router rules by interpolating user-controlled values into backtick-delimited rule expressions without escaping. In live cluster validation, Knative rules.hosts was...

CVE-2026-32695

Summary: CVE-2026-32695 affects Traefik with Knative provider. Prior to versions 3.6.11 and 3.7.0-ea.2, routers were built by interpolating user-controlled values into backtick-delimited rule expressions without escaping, enabling rule-syntax injection and host/header manipulation. In live multi-...

CVE-2026-32695 Traefik has Knative Ingress Rule Injection that Allows Host Restriction Bypass

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 3.6.11 and 3.7.0-ea.2, Traefik's Knative provider builds router rules by interpolating user-controlled values into backtick-delimited rule expressions without escaping. In live cluster validation, Knative rules.hosts was...

CVE-2026-32695 Traefik has Knative Ingress Rule Injection that Allows Host Restriction Bypass

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 3.6.11 and 3.7.0-ea.2, Traefik's Knative provider builds router rules by interpolating user-controlled values into backtick-delimited rule expressions without escaping. In live cluster validation, Knative rules.hosts was...

Interpretation Conflict

github.com/traefik/traefik is vulnerable to Interpretation Conflict. The vulnerability is due to improper path normalization when handling Path, PathPrefix, or PathRegex matchers, which allows an attacker to use URL-encoded characters to bypass middleware and access unintended backend services...

OPENSUSE-SU-2026:10444-1 traefik-3.6.12-1.1 on GA media

These are all security issues fixed in the traefik-3.6.12-1.1 package on the GA media of openSUSE Tumbleweed...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions prior to Traefik 2.11.42, 3.6.11, and 3.7.0-ea.3 contain security vulnerabilities. These vulnerabilities arise from using non-standard HTTP header names, which may allow authenticated attackers to injec...

PT-2026-28442

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 3.6.11 and 3.7.0-ea.2 Description Traefik’s Knative provider constructs router rules by incorporating user-provided values into rule expressions without proper sanitization. Specifically, the rules.hosts field in...

Traefik 注入漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions prior to Traefik 3.6.11 and 3.7.0-ea.2 contained a vulnerability related to injection attacks. This vulnerability stemmed from Knative-enabled programs that inserted user-controlled values into rule...

traefik -- Multiple vulnerabilities

The traefik project releases a new version addressing multiple CVEs: CVE-2026-33433 BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField CVE-2026-33186 authorization bypass via missing leading slash in :path...

Traefik < 2.11.41 / 3.x < 3.6.11 Multiple Vulnerabilities

The version of Traefik installed on the remote macOS host is prior to 2.11.41 or 3.x prior to 3.6.11. It is, therefore, affected by multiple vulnerabilities: - mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across...

GO-2026-4792 Traefik Affected by BasicAuth Middleware Timing Attack Allows Username Enumeration in github.com/traefik/traefik

Traefik Affected by BasicAuth Middleware Timing Attack Allows Username Enumeration in github.com/traefik/traefik...