github.com/traefik/traefik/v2 vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-54761Mediumgithub.com/traefik/traefik/v3: Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist…CVE-2026-53622HighTraefik: Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts CVE-2026-48020Highgithub.com/traefik/traefik/v2: Traefik has a StripPrefix Route-Level Auth Bypass via Path Normalization CVE-2026-44774Mediumgithub.com/traefik/traefik/v3: Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure…CVE-2026-41181Mediumgithub.com/traefik/traefik/v2: Traefik's errors middleware forwards Authorization and Cookie headers to separate error page service CVE-2026-41263Mediumgithub.com/traefik/traefik/v3: Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth…CVE-2026-41174Mediumgithub.com/traefik/traefik/v3: Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding CVE-2026-40912Highgithub.com/traefik/traefik/v3: Traefik has an StripPrefixRegex Middleware Authorization Bypass via Path/RawPath Desync CVE-2026-39858Highgithub.com/traefik/traefik/v3: Traefik: Pre-authentication decision bypass due to forwarded alias spoofing CVE-2026-35051Highgithub.com/traefik/traefik/v3: Traefik's ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass…GHSA-46WH-3698-F2CXHighgithub.com/traefik/traefik/v2: Traefik: Deny Rule Bypass via Unauthenticated Malicious gRPC Requests in gRPC-Go Dependency…CVE-2026-33433Mediumgithub.com/traefik/traefik/v2: Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField CVE-2026-32695Mediumgithub.com/traefik/traefik/v3: Traefik has Knative Ingress Rule Injection that Allows Host Restriction Bypass CVE-2026-32595Mediumgithub.com/traefik/traefik: Traefik Affected by BasicAuth Middleware Timing Attack Allows Username Enumeration CVE-2026-32305Highgithub.com/traefik/traefik/v3: Traefik has a Potential mTLS Bypass via Fragmented TLS ClientHello Causing Pre-SNI Sniff Fallback…GHSA-4HJQ-9H5C-252JHighgithub.com/traefik/traefik/v2: Traefik: HTTP/2 frames can cause a running server to panic CVE-2026-29777Mediumgithub.com/traefik/traefik/v3: Traefik: kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values CVE-2026-29054Highgithub.com/traefik/traefik/v2: traefik CVE-2024-45410 fix bypass: lowercase `Connection` tokens can delete traefik-managed…CVE-2026-26999Highgithub.com/traefik/traefik/v2: Traefik: tcp router clears read deadlines before tls forwarding, enabling stalled handshakes…CVE-2026-26998Mediumgithub.com/traefik/traefik/v2: Traefik has unbounded io.ReadAll on auth server response body that causes OOM DOS GHSA-GV8R-9RW9-9697Highgithub.com/traefik/traefik: Traefik affected by TLS ClientAuth Bypass on HTTP/3 CVE-2026-22045Mediumgithub.com/traefik/traefik/v3: Traefik's ACME TLS-ALPN fast path lacks timeouts and close on handshake stall CVE-2025-66490Mediumgithub.com/traefik/traefik: Path Normalization Bypass in Traefik Router + Middleware Rules CVE-2025-54386Highgithub.com/traefik/traefik/v2: Traefik Client Plugin's Path Traversal Vulnerability Allows Arbitrary File Overwrite and Remote…CVE-2025-47952Lowgithub.com/traefik/traefik/v3: Traefik allows path traversal using url encoding

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