CVE-2026-44945
Critical · 9.1CVSS
9.1
EPSS
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Published
Aug 5, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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