# CVE-2026-71327

## Summary

- **CVE ID:** CVE-2026-71327
- **Severity:** HIGH
- **CVSS Score:** 7.6 (CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-694
- **Published:** Aug 6, 2026
- **Last Modified:** Aug 7, 2026

## 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.

## Affected Products

- traefik — traefik (>= 3.0.0, < 3.6.25)
- traefik — traefik (>= 3.7.0, < 3.7.10)

## References

- [CNA](https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx)
- [CNA](https://github.com/traefik/traefik/pull/13580)
- [CNA](https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844f9)
- [CNA](https://github.com/traefik/traefik/releases/tag/v3.6.25)
- [CNA](https://github.com/traefik/traefik/releases/tag/v3.7.10)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.5

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._