CVE-2026-114656
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Oct 22, 2026
Vendor
unknown
Description
Traefik before 2.11.58 and 3.7.13 contains an authentication bypass vulnerability that allows unauthenticated clients to skip client-certificate checks because negated Host matchers are counted as served domains. Attackers can reach backends protected by RequireAndVerifyClientCert when a router rule with !Host() creates a TLS options conflict that falls back to the default options.