CVE-2026-41174

Katalog CVE

CVSS 6.4 · Medium EPSS 0,27%

Kerentanan Improper Isolation or Compartmentalization pada traefik. Skor CVSS 3.1 6.4 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

30 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-653: Improper Isolation or Compartmentalization
CWE-863: Incorrect Authorization

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 18,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/traefik/traefik/security/advisories/GHSA-xhjw-95fp-8vgq exploit · patch · advisory vendor
• https://github.com/traefik/traefik/commit/df00d82fc7f12e07199551832b54de6d0e55414d patch
• https://github.com/traefik/traefik/releases/tag/v2.11.43 product · release notes
• https://github.com/traefik/traefik/releases/tag/v3.6.14 product · release notes
• https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2 product · release notes