CVE-2026-44774 Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite providers.rest.insecure=false

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider...

CVE-2026-44774 Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite providers.rest.insecure=false

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider...

CVE-2026-44774

CVE-2026-44774 - Traefik Gateway API exposure vulnerability Affected: Traefik v2.x before 2.11.46, v3.x before 3.6.17 and 3.7.1. Issue: In the Kubernetes Gateway API provider, a tenant with HTTPRoute creation rights can expose the REST provider handler by abusing TraefikService backend references...

CVE-2026-41181

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an information disclosure vulnerability in Traefik's errors custom error pages middleware. When the backend returns a response matching the configured status range, the middleware forwards the...

CVE-2026-41181 Traefik: Errors middleware forwards Authorization and Cookie headers to separate error page service

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an information disclosure vulnerability in Traefik's errors custom error pages middleware. When the backend returns a response matching the configured status range, the middleware forwards the...

CVE-2026-41181 Traefik: Errors middleware forwards Authorization and Cookie headers to separate error page service

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an information disclosure vulnerability in Traefik's errors custom error pages middleware. When the backend returns a response matching the configured status range, the middleware forwards the...

EUVD-2026-30557

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an information disclosure vulnerability in Traefik's errors custom error pages middleware. When the backend returns a response matching the configured status range, the middleware forwards the...

CVE-2026-41181 Traefik: Errors middleware forwards Authorization and Cookie headers to separate error page service

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an information disclosure vulnerability in Traefik's errors custom error pages middleware. When the backend returns a response matching the configured status range, the middleware forwards the...

CVE-2026-41181

CVE-2026-41181 affects Traefik before 2.11.44, 3.6.15, and 3.7.0-rc.3. The information disclosure stems from the errors middleware in which, when a response matches a configured status range, the middleware forwards the full request header set (including Authorization and Cookies) to the separate...

Traefik 访问控制错误漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions prior to Traefik 2.11.46, 3.6.17, and 3.7.1 contained a access control vulnerability. This vulnerability stemmed from the Kubernetes Gateway API provider, which allowed tenants with permission to create...

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 2.11.44, 3.6.15, and 3.7.0-rc.3. These vulnerabilities stem from the errors middleware module, which forwards the entire set of request headers including...

traefik -- Unauthorized exposure of the REST provider

The traefik project releases a new version addressing a CVE: CVE-2026-44774 Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider...

Traefik 2.x < 2.11.46 / 3.x < 3.6.17 / 3.7.x < 3.7.1 Authentication Bypass (CVE-2026-44774)

The version of Traefik installed on the remote macOS host is 2.x prior to 2.11.46, 3.x prior to 3.6.17, or 3.7.x prior to 3.7.1. It is, therefore, affected by an authentication bypass vulnerability: - The Kubernetes Gateway API provider accepts any TraefikService backend reference whose name ends...

Authentication Bypass

Traefik is vulnerable to Authentication Bypass. The vulnerability is due to improper handling in the ForwardAuth middleware when trustForwardHeader=false is configured behind a trusted upstream proxy, which allows an attacker to bypass authentication controls and gain unauthorized access...

Authentication Bypass

github.com/traefik/traefik is vulnerable to an authentication bypass. The vulnerability is due to improper sanitization of forwarded header alias variants using underscores instead of dashes, which allows an attacker to inject spoofed trusted headers and bypass authentication on protected routes...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass in the handling of internal service references by the Gateway API provider. An attacker can gain unauthorized dynamic configuration write access by creating or updating an HTTPRoute that targets rest@internal, even...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass in the handling of internal service references by the Gateway API provider. An attacker can gain unauthorized dynamic configuration write access by creating or updating an HTTPRoute that targets rest@internal, even...

GHSA-96QJ-4JJ5-WCJC Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite providers.rest.insecure=false

Summary There is a medium severity vulnerability in Traefik's Kubernetes Gateway API provider that allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider accepts any TraefikService backend...

Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite providers.rest.insecure=false

Summary There is a medium severity vulnerability in Traefik's Kubernetes Gateway API provider that allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider accepts any TraefikService backend...

PT-2026-40716

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 2.11.46 Traefik versions prior to 3.6.17 Traefik versions prior to 3.7.1 Description Traefik's Kubernetes Gateway API provider contains an authorization bypass that allows a tenant with HTTPRoute creation permissions ...