Vulnerability Description
Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace's backend. This issue is fixed in 3.6.25 and 3.7.10.
Related Weaknesses (CWE)
References
- https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844
- https://github.com/traefik/traefik/pull/13580
- https://github.com/traefik/traefik/releases/tag/v3.6.25
- https://github.com/traefik/traefik/releases/tag/v3.7.10
- https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx
FAQ
What is CVE-2026-71327?
CVE-2026-71327 is a documented vulnerability. Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute...
How severe is CVE-2026-71327?
CVSS scoring is not yet available for CVE-2026-71327. Check NVD for updates.
Is there a patch for CVE-2026-71327?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.