CVE-2026-44945: A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the…

PriorityP356critical9.1CVSS 3.1

AVNACLPRHUINSCCHIHAH

EPSS

0.38%

30.8th percentile

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

4 ranges

Vendor	Product	Version range	Fixed in
suse	rancher	>= 2.11.0 < 2.11.16	2.11.16
suse	rancher	>= 2.12.0 < 2.12.12	2.12.12
suse	rancher	>= 2.13.0 < 2.13.8	2.13.8
suse	rancher	>= 2.14.0 < 2.14.2	2.14.2

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