CVE-2026-71404

HighCVSS 8.7/10Last modified Sep 18, 2026

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.

Metrics

CVSS 3.1 8.7/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published: Sep 3, 2026
Last modified: Sep 18, 2026
NVD status: Analyzed

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