2.1
Low
CVE-2026-119573 Traefik 3.7.11 before 3.7.15 contains an authorization bypass in the Kubernetes Ingress NGINX provider that skips the…
Description
Traefik 3.7.11 before 3.7.15 contains an authorization bypass in the Kubernetes Ingress NGINX provider that skips the cross-namespace check on the auth-tls-secret annotation when a cached client authentication TLS option is reused. Users who can create Ingresses can reference another namespace's CA secret already used by another Ingress, enforcing it on their own routes and learning whether it exists, without disclosure of its contents.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| traefik 3.7 | 3.7.11 → < 3.7.15 | 3.7.15 |
Other CVEs of traefik
The 80 CVEs of traefik →
CVE-2026-121966
Traefik before 2.11.60 and 3.7.16 ForwardAuth NTLM/Negotiate Identity Leak
7.0
High
CVE-2026-119574
Traefik from 3.2.0 before 3.7.15 contains a data race in the experimental FastProxy that allows unauthenticated…
8.2
High
CVE-2026-119572
Traefik 3.7.0-ea.1 before 3.7.15 mTLS Bypass via Ingress NGINX Provider
7.0
High
CVE-2026-114656
Traefik before 2.11.58 and 3.7.13 mTLS Bypass via Negated Host Matcher
6.9
Medium