CVE-2026-71325mediumCWE-653CWE-863

CVE-2026-71325: fallo de gravedad media en traefik

Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear traefik+ Monitorear github.com/traefik/traefik

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 4.8epss 0.2%
Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a single namespace can therefore bind its own router to a TraefikService owned by another namespace and expose or reroute that namespace's backend, defeating the namespace isolation allowCrossNamespace=false is meant to enforce. This issue is fixed in version 2.11.54, 3.6.25, 3.7.10.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Productos afectados
traefik · traefik
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