CVE-2026-114638 — Traefik v3.7.0 before v3.7.14 Client CA Mix-up via auth-tls-secret Name Collision
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 collid…
Published: 2026-10-22 · CVSS: 7.0 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7