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CVE-2026-41174

MEDIUM · CVSS 6.4 EPSS %0.01 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-04-30T21:16:33.240 · Çekilme zamanı: 2026-05-30T18:00:40.781410+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

Tespit Edilen Sinyaller
exploit

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CVE
CVE-2026-41174
Severity
MEDIUM
CVSS
6.4
EPSS
%0.01
Kubernetes

Orijinal NVD Açıklaması

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is a potential vulnerability in Traefik's Kubernetes CRD provider cross-namespace isolation enforcement. When providers.kubernetesCRD.allowCrossNamespace=false, Traefik correctly rejects direct cross-namespace middleware references from IngressRoute objects, but fails to apply the same restriction to middleware references nested inside a Chain middleware's spec.chain.middlewares[]. An actor with permission to create or update Traefik CRDs in their own namespace can exploit this to cause Traefik to resolve and apply middleware objects from another namespace, bypassing the documented isolation boundary. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.