CVE-2026-44945 Cross-Cluster Impersonation Confused-Deputy Privilege Escalation

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...

CVE-2026-44945

CVE-2026-44945 is a privilege escalation in Rancher’s impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated user with the default global role can obtain full admin access to the Rancher control plane and downstream clusters. Affected: Rancher 2.11.0–2.11.15, 2.12.0–2.12.11...