Database/Container, Kubernetes & orchestration
Traefik: Authentication bypass in ForwardAuth and snippet-based auth middleware
CVSS 7.8CVE-2026-39858Container, Kubernetes & orchestrationcurated
Impact
Authentication bypass in ForwardAuth and snippet-based auth middleware
Who can reach it
Unauthenticated network
What to do
Rolling Traefik upgrade
References
Related entries
- Traefik: Authentication bypass via StripPrefixRegex middlewareCVE-2026-40912 · TraefikHigh
- Traefik: StripPrefix middleware allows route-level authentication bypassCVE-2026-48020 · TraefikHigh
- Traefik: HTTP/3 QUIC TLS configuration selection lets clients bypass router-specific mTLS enforcementCVE-2026-53622 · TraefikHigh
- Traefik: Authentication bypass via path traversal in ReplacePathRegexCVE-2026-65600 · TraefikHigh
- Traefik: GET with a Content-Length header hangs the endpoint indefinitelyCVE-2024-28869 · TraefikHigh
- Traefik: IP allow-lists bypassed via HTTP/3 early data in QUIC 0-RTT with spoofed addressesCVE-2024-39321 · TraefikHigh
This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.