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.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 22 Oct 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-22T01:43:38.571Z
Reserved: 2026-10-21T21:57:36.197Z
Link: CVE-2026-114638
No data.
Status : Awaiting Analysis
Published: 2026-10-22T02:16:56.653
Modified: 2026-10-22T15:39:30.497
Link: CVE-2026-114638
No data.
OpenCVE Enrichment
Updated: 2026-10-22T08:45:02Z
Weaknesses