CVE-2026-71404: Suse Rancher

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

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: before 2.15.1 (fixed in 2.15.1)

Published 2026-09-03. Last modified 2026-09-18.