github.com/traefik/traefik/v2 vulnerabilities

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CVE-IDSeverityPackage summary
CVE-2026-88008Highgithub.com/traefik/traefik/v3: Traefik: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') and Incorrect AuthorizationCVE-2026-88007Criticalgithub.com/traefik/traefik/v3: Traefik HTTP/3 Backend NTLM Connection ReuseCVE-2026-88009Highgithub.com/traefik/traefik/v3: Traefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and…CVE-2026-88011Mediumgithub.com/traefik/traefik/v2: Traefik: ForwardAuth identity spoofing via dot-form header aliasCVE-2026-88012Mediumgithub.com/traefik/traefik/v2: Traefik: respondingTimeouts.readTimeout is not applied to HTTP/3, leaving slow-body uploads unboundedCVE-2026-54763Highgithub.com/traefik/traefik/v2: Traefik: Incomplete fix for CVE-2026-33433 + CVE-2026-39858 cross-cohort: headerField underscore-variant identity spoofing in BasicAuth /…CVE-2026-65600Criticalgithub.com/traefik/traefik/v2: Traefik: Authentication Bypass via Path Traversal in ReplacePathRegex MiddlewareCVE-2026-71325Mediumgithub.com/traefik/traefik/v2: Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRefCVE-2026-54764Mediumgithub.com/traefik/traefik/v2: Traefik: ForwardAuth middleware leaks X-Forwarded-Port spoofing via untrusted X-Forwarded-Proto when trustForwardHeader=falseCVE-2026-71324Highgithub.com/traefik/traefik/v2: Traefik: Cross-user response poisoning via proxied CONNECT on Traefik's shared backend keep-alive poolCVE-2026-54761Mediumgithub.com/traefik/traefik/v3: Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik servicesCVE-2026-53622Highgithub.com/traefik/traefik/v2: Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hostsCVE-2026-48491Highgithub.com/traefik/traefik/v2: Traefik: SNICheck ignores wildcard TLSOptions mappings, allowing domain-fronted mTLS bypassCVE-2026-48020Highgithub.com/traefik/traefik/v2: Traefik has a StripPrefix Route-Level Auth Bypass via Path NormalizationCVE-2026-44774Mediumgithub.com/traefik/traefik/v3: Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite…CVE-2026-41181Mediumgithub.com/traefik/traefik/v2: Traefik's errors middleware forwards Authorization and Cookie headers to separate error page serviceCVE-2026-41263Mediumgithub.com/traefik/traefik/v3: Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middlewareCVE-2026-41174Mediumgithub.com/traefik/traefik/v3: Traefik Kubernetes CRD allows unauthorized cross-namespace middleware bindingCVE-2026-40912Highgithub.com/traefik/traefik/v3: Traefik has an StripPrefixRegex Middleware Authorization Bypass via Path/RawPath DesyncCVE-2026-39858Highgithub.com/traefik/traefik/v3: Traefik: Pre-authentication decision bypass due to forwarded alias spoofingCVE-2026-35051Highgithub.com/traefik/traefik/v3: Traefik's ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass authenticationGHSA-46WH-3698-F2CXHighgithub.com/traefik/traefik/v2: Traefik: Deny Rule Bypass via Unauthenticated Malicious gRPC Requests in gRPC-Go Dependency (CVE-2026-33186)CVE-2026-33433Mediumgithub.com/traefik/traefik/v2: Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerFieldCVE-2026-32695Mediumgithub.com/traefik/traefik/v3: Traefik has Knative Ingress Rule Injection that Allows Host Restriction BypassCVE-2026-32595Mediumgithub.com/traefik/traefik: Traefik Affected by BasicAuth Middleware Timing Attack Allows Username Enumeration

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