CVE-2026-114638
HIGH
NVD
CVSS Score
8.7
Severity
HIGH
Published
Oct 22, 2026
Vendor
unknown
Description
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.