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.
Metrics
Affected Vendors & Products
References
History
Fri, 23 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Thu, 22 Oct 2026 02:00:00 +0000
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| 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. | |
| Title | Traefik v3.7.0 before v3.7.14 Client CA Mix-up via auth-tls-secret Name Collision | |
| First Time appeared |
Traefik
Traefik traefik |
|
| Weaknesses | CWE-287 | |
| CPEs | cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Traefik
Traefik traefik |
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| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-22T01:43:38.571Z
Updated: 2026-10-23T15:08:01.405Z
Reserved: 2026-10-21T21:57:36.197Z
Link: CVE-2026-114638
Updated: 2026-10-23T14:48:08.447Z
Status : Analyzed
Published: 2026-10-22T02:16:56.653
Modified: 2026-10-27T14:17:17.807
Link: CVE-2026-114638
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