github.com/traefik/traefik 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 to expose internal Traefik services CVE-2026-53622HighTraefik: Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts CVE-2026-44774Mediumgithub.com/traefik/traefik/v3: Traefik: Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite…CVE-2026-41263Mediumgithub.com/traefik/traefik/v3: Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware 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 authentication 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 to Default Non-mTLS TLS Config CVE-2026-29777Mediumgithub.com/traefik/traefik/v3: Traefik: kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values GHSA-GV8R-9RW9-9697Highgithub.com/traefik/traefik: Traefik affected by TLS ClientAuth Bypass on HTTP/3 CVE-2025-66490Mediumgithub.com/traefik/traefik: Path Normalization Bypass in Traefik Router + Middleware Rules CVE-2025-47952Lowgithub.com/traefik/traefik/v3: Traefik allows path traversal using url encoding CVE-2025-32431Highgithub.com/traefik/traefik: Traefik has a possible vulnerability with its path matchers CVE-2024-45410Criticalgithub.com/traefik/traefik/v3: HTTP client can manipulate custom HTTP headers that are added by Traefik GHSA-7JMW-8259-Q9JXMediumgithub.com/traefik/traefik/v3: Traefik has unexpected behavior with IPv4-mapped IPv6 addresses GHSA-F7CQ-5V43-8PWPMediumgithub.com/traefik/traefik/v2: Traefik vulnerable to GO issue allowing malformed DNS message to cause infinite loop CVE-2024-28869Highgithub.com/traefik/traefik/v3: Traefik vulnerable to denial of service with Content-length header GHSA-7V4P-328V-8V5GMediumgithub.com/traefik/traefik: Traefik vulnerable to HTTP/2 request causing denial of service CVE-2019-12452Highgithub.com/traefik/traefik: Containous Traefik Exposes Password Hashes CVE-2018-15598Highgithub.com/traefik/traefik: Traefik Missing Authentication CVE-2020-15129Mediumgithub.com/traefik/traefik: Traefik vulnerable to Open Redirect via handling of X-Forwarded-Prefix header CVE-2020-9321Mediumgithub.com/traefik/traefik: Traefik has an Improper Certificate Handling issue CVE-2021-32813Mediumgithub.com/traefik/traefik/v2: Header dropping in traefik

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