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.
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Affected Vendors & Products
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 : Received
Published: 2026-10-22T02:16:56.653
Modified: 2026-10-22T02:16:56.653
Link: CVE-2026-114638
No data.
OpenCVE Enrichment
Updated: 2026-10-22T06:00:14Z
Weaknesses