CVE-2026-85594
github.com/traefik/traefik: Traefik: Information disclosure via crossProviderNamespaces bypass in Kubernetes Ingress provider
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Red Hat (alta).
Descripción
Traefik versions from v3.7.1 fail to enforce crossProviderNamespaces restrictions on the traefik.ingress.kubernetes.io/service.middlewares Service annotation in the Kubernetes Ingress provider. A namespace-limited tenant excluded from the allowlist can attach an operator-owned middleware to its Service, and if that middleware injects backend credentials, recover them at a controlled backend.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| minimos | traefik-3, traefik-fips-3 | 3.7.11-r0 |
| rapidfort alpine 3.20 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.21 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.22 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.23 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.24 | traefik | 3.7.11-r0 |
Mostrar las 7 entradas de 6 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| minimos | traefik-3 | 3.7.11-r0 |
| minimos | traefik-fips-3 | 3.7.11-r0 |
| rapidfort alpine 3.20 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.21 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.22 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.23 | traefik | 3.7.11-r0 |
| rapidfort alpine 3.24 | traefik | 3.7.11-r0 |
Referencias
- https://access.redhat.com/security/cve/CVE-2026-85594
- https://github.com/traefik/traefik/security/advisories/GHSA-m6wx-622r-48r9
- https://nvd.nist.gov/vuln/detail/CVE-2026-85594
- https://www.cve.org/CVERecord?id=CVE-2026-85594
- https://www.vulncheck.com/advisories/traefik-3.7.1-crossprovidernamespaces-bypass-via-service-middleware