CVE-2026-44774
traefik: Traefik: Privilege escalation via Kubernetes Gateway API provider configuration bypass
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Red Hat (alta), GHSA (media).
Descripción
Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider accepts any TraefikService backend reference whose name ends with @internal, making it possible to route traffic to rest@internal in addition to the intended api@internal. In shared Gateway deployments where the REST provider is enabled, this allows a low-privileged actor to gain live dynamic configuration write access to Traefik, enabling unauthorized reconfiguration of routers and services. This vulnerability is fixed in 2.11.46, 3.6.17, and 3.7.1.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| go::GitHub Security Advisory Go | github.com/traefik/traefik, github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 | 2.11.46 y 1 más |
| minimos | traefik-3, traefik-fips-3 | 3.7.1-r0 |
| rapidfort alpine 3.20 | traefik | 3.7.1-r0 |
| rapidfort alpine 3.21 | traefik | 3.7.1-r0 |
| rapidfort alpine 3.22 | traefik | 3.7.1-r0 |
| rapidfort alpine 3.23 | traefik | 3.7.1-r0 |
Mostrar las 9 entradas de 6 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| go::GitHub Security Advisory Go | github.com/traefik/traefik | sin corrección indicada |
| go::GitHub Security Advisory Go | github.com/traefik/traefik/v2 | 2.11.46 |
| go::GitHub Security Advisory Go | github.com/traefik/traefik/v3 | 3.7.1, 3.6.17 |
| minimos | traefik-3 | 3.7.1-r0 |
| minimos | traefik-fips-3 | 3.7.1-r0 |
| rapidfort alpine 3.20 | traefik | 3.7.1-r0 |
| rapidfort alpine 3.21 | traefik | 3.7.1-r0 |
| rapidfort alpine 3.22 | traefik | 3.7.1-r0 |
| rapidfort alpine 3.23 | traefik | 3.7.1-r0 |
Referencias
- https://access.redhat.com/errata/RHSA-2026:36820
- https://access.redhat.com/security/cve/CVE-2026-44774
- https://bugzilla.redhat.com/show_bug.cgi?id=2477937
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/releases/tag/v2.11.46
- https://github.com/traefik/traefik/releases/tag/v3.6.17
- https://github.com/traefik/traefik/releases/tag/v3.7.1
- https://github.com/traefik/traefik/security/advisories/GHSA-96qj-4jj5-wcjc