CVE-2026-114638
Traefik v3.7.0 before v3.7.14 Client CA Mix-up via auth-tls-secret Name Collision
CVSS Score
8.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-287 |
| Vendor | traefik |
| Product | traefik |
| Published | Oct 22, 2026 |
Stay Ahead of the Next One
Get instant alerts for traefik traefik
Be the first to know when new high vulnerabilities affecting traefik traefik are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
traefik / traefik
3.7.0 < 3.7.14
References
Credits
🔍 scofaild23