CVE-2026-41050 CRITICAL

CVE-2026-41050: Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering

Vendor Suse
Product Rancher
Weakness CWE-863 · Incorrect authorization
Published May 13, 2026
Last update May 14, 2026
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their `GitRepo`.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 14, 2026 Record updated