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CVE-2026-71325

CVE-2026-71325 · Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

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 4.8 · Moyenne · EPSS 0,2%

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Mise à jour

Pile logicielle: web

Produits et versions concernés

  • traefik

    Versions du logiciel
    • < 2.11.54: Concernée
    • >= 3.0.0, < 3.6.25: Concernée
    • >= 3.7.0, < 3.7.10: Concernée

    Aucun correctif publié

Sources originales

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