CVE-2026-44945Escalación de privilegios crítica en Rancher
A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user global role can gain full administrative access to the Rancher control plane and transitively to all downstream clusters it manages. This issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.
Ver en NVDAnálisis
A critical vulnerability in Rancher allows any authenticated user with default permissions to gain full administrative control over the Rancher management plane and all downstream Kubernetes clusters. If you use Rancher to manage your clusters, update to versions 2.11.16, 2.12.12, 2.13.8, or 2.14.2 immediately.
Roles relevantes
Severidad
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HCWE-441CWE-497EPSS
Sin puntaje EPSS aún (CVE muy reciente).
Descripción técnica
A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user global role can gain full administrative access to the Rancher control plane and transitively to all downstream clusters it manages. This issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.