CVE-2026-44774
traefik: Traefik: Privilege escalation via Kubernetes Gateway API provider configuration bypass
Einstufung nach Quelle
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut Red Hat (hoch), GHSA (mittel).
Beschreibung
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.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| go::GitHub Security Advisory Go | github.com/traefik/traefik, github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 | 2.11.46 und 1 weitere |
| 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 |
Alle 9 Einträge aus 6 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| go::GitHub Security Advisory Go | github.com/traefik/traefik | kein Fix angegeben |
| 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 |
Referenzen
- 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