Description
A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as `cluster-admin`, and revoke the permissions of every principal bound to it. The change persists after the malicious GlobalRole is deleted. This issue affects Rancher: before 2.15.1.
Affected products
suse: rancher
References2
- github.com/rancher/rancher/pull/56593 Issue TrackingPatch
- github.com/rancher/rancher/pull/56642 Issue TrackingPatch
Metrics
- CVSS 3.1
-
8.7
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H - EPSS — exploit probability
- 0% percentile: 37 · as of 3 November 2026
- CWE
- CWE-639
Could this be exploited in your environment?
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