CVE-2026-114638
Traefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the Kubernetes…
- Risk score
- 69/100
- CVSS
- 8.7 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 22 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Traefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the Kubernetes Ingress NGINX provider. Attackers can access a host requiring its own client CA while legitimate clients are refused.
- Affected
- {'product': 'Traefik', 'package': None, 'version': 'v3.7.0 before v3.7.14'}
- Fix
- Upgrade to v3.7.14 or later
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.7 high
- Remotely exploitable without logging in
- On your watchlist: kubernetes, nginx
References
Original 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.
Last activity 22 Oct 2026. Patch Forecast updates every hour.