CVE-2026-41174

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 a potential vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects...

CVE-2026-41174 Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding

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 a potential vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects...

CVE-2026-41174 Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding

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 a potential vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects...

CVE-2026-41174

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 a potential vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects...

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. Traefik has a security vulnerability that stems from its header forwarding cleanup logic, which only handles standard header names. It does not process aliases that use underscores instead of hyphens, which may...

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 数据伪造问题漏洞

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 contained a data manipulation vulnerability. This vulnerability stems from the ForwardAuth middleware, which has a authentication bypass vulnerability wh...

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...

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...

Timing Attack

Overview github.com/traefik/traefik/v2/pkg/middlewares/auth is a Cloud Native Application Proxy. 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 difference...

GHSA-6X2Q-H3CR-8J2H Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware

Summary There is a timing side-channel vulnerability in Traefik's BasicAuth middleware that allows an attacker to enumerate valid usernames through response-time differences. The variable intended to hold a constant-time fallback secret always resolves to an empty string, causing the constant-tim...

Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware

Summary There is a timing side-channel vulnerability in Traefik's BasicAuth middleware that allows an attacker to enumerate valid usernames through response-time differences. The variable intended to hold a constant-time fallback secret always resolves to an empty string, causing the constant-tim...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the createChainMiddleware function. Even when providers.kubernetesCRD.allowCrossNamespace=false is set, references in spec.chain.middlewares may be followed to access objects in other namespaces. A user with...

Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding

Summary There is a vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects direct cross-namespace middleware references from IngressRoute objects, but fails to apply the same...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the createChainMiddleware function. Even when providers.kubernetesCRD.allowCrossNamespace=false is set, references in spec.chain.middlewares may be followed to access objects in other namespaces. A user with...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the createChainMiddleware function. Even when providers.kubernetesCRD.allowCrossNamespace=false is set, references in spec.chain.middlewares may be followed to access objects in other namespaces. A user with...

GHSA-XHJW-95FP-8VGQ Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding

Summary There is a vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects direct cross-namespace middleware references from IngressRoute objects, but fails to apply the same...

GHSA-6JWX-7VP4-9847 Traefik has an StripPrefixRegex Middleware Authorization Bypass via Path/RawPath Desync

Summary There is a high severity authentication bypass vulnerability in Traefik's StripPrefixRegex middleware when used in combination with ForwardAuth, BasicAuth, or DigestAuth. The middleware matches the regex against the decoded URL path but uses the resulting byte length to slice the...