CVE-2026-41174
בינונית 6.4
תיאור (מקור, אנגלית)
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.
מדדים
- CVSS 3.1
-
6.4 (MEDIUM)
מקור הציון: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - CVSS 4.0
-
4.8 (MEDIUM)
מקור הציון: CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-30/7/2026
- CWE
- CWE-653, CWE-863
מוצרים מושפעים
traefik: traefik
קישורים
- https://github.com/traefik/traefik/security/advisories/GHSA-xhjw-95fp-8vgq ExploitPatchVendor Advisory
- https://github.com/traefik/traefik/commit/df00d82fc7f12e07199551832b54de6d0e55… Patch
- https://github.com/traefik/traefik/releases/tag/v2.11.43 ProductRelease Notes
- https://github.com/traefik/traefik/releases/tag/v3.6.14 ProductRelease Notes
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2 ProductRelease Notes