CVE-2026-114638

HighCVSS 8.7/10Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 8.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-287

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
traefiktraefik>= 3.7.0, < 3.7.14

References

Timeline

Published
Oct 22, 2026
Last modified
Oct 23, 2026
NVD status
Undergoing Analysis

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