ServiceAccount Impersonation Leak in Fleet Helm Deployer (CVE-2026-41050)
CVE-2026-41050 Published on May 13, 2026

Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering
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`.

NVD

Vulnerability Analysis

CVE-2026-41050 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is an AuthZ Vulnerability?

The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

CVE-2026-41050 has been classified to as an AuthZ vulnerability or weakness.


Products Associated with CVE-2026-41050

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Suse Rancher
 

Affected Versions

SUSE Rancher: