CVE-2026-114638: high-severity vulnerability in traefik
Traefik v3.7.0 before v3.7.14 Client CA Mix-up via auth-tls-secret Name Collision
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.2%
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Affected products
traefik · traefikRelated CVEs — traefik
In the same product, most dangerous first.
CVE-2026-85595CRITICALTraefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuthEPSS 2.5%CVE-2022-23632HIGHTraefik skips the router TLS configuration when the host header is an FQDNEPSS 1.7%CVE-2024-45410CRITICALHTTP client can remove the X-Forwarded headers in TraefikEPSS 1.5%CVE-2025-54386HIGHTraefik's Client Plugin is Vulnerable to Path Traversal, Arbitrary File Overwrites and Remote Code ExecutionEPSS 1.4%CVE-2022-39271HIGHTraefik HTTP/2 connections management could cause a denial of serviceEPSS 1.4%CVE-2023-47633HIGHUncontrolled Resource Consumption in TraefikEPSS 1.3%