CVE-2026-114638
CVE-2026-114638 · Traefik v3.7.0 before v3.7.14 Client CA Mix-up via auth-tls-secret Name Collision
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Traefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the Kubernetes Ingress NGINX provider that merges client CAs when auth-tls-secret names collide after dot-to-dash normalization. Attackers holding certificates from another host's CA can access a host requiring its own client CA, while that host's legitimate clients are refused.
CVSS 7.0 · High · EPSS 0.2% · Fix available
- Published
- Updated
Stack: web
Affected products and versions
traefik
- Versions
- ≥ 3.7.0, < 3.7.14: Affected (semver)
- 3.7.14: Not affected (semver)
Update to 3.7.14