CVE-2026-71404

8.7 highEPSS 0.4%

High (8.7) in suse rancher. 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.

Severity

CVSS 3.1

8.7 high

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2026-09-03
Modified: 2026-09-18
Record from: the NVD, synced 2026-10-19

Affected

suse:rancher

References

https://github.com/rancher/rancher/pull/56593
https://github.com/rancher/rancher/pull/56642

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