CVE-2026-44945criticalCWE-441CWE-497

CVE-2026-44945: critical vulnerability in SUSE Rancher

Cross-Cluster Impersonation Confused-Deputy Privilege Escalation

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.1epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
SUSE · Rancher
Related CVEs — SUSE Rancher

In the same product, most dangerous first.

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