CVE-2026-119573
lowTraefik 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-sec…
Vendor / product: Traefik — traefik
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.
CVSS
3.0
3.0 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-10-30 14:16
Modified: 2026-11-03 14:20
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 14:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
traefik / traefik ≥3.7.11 <3.7.15
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/traefik/traefik/security/advisories/GHSA-28hp-c82p-8vqj
References
- https://github.com/traefik/traefik/security/advisories/GHSA-28hp-c82p-8vqj disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/traefik-3.7.11-before-3.7.15-cross-namespace-authoriz... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 14:50 UTC · record ↗