CVE-2026-41050

critical

Published 2026-05-13 · Modified 2026-05-14

CVSS v3

9.9

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

CVSS v2

—

VIR risk

9.9

Description

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

Predictions

Exploit likelihood

98%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/rancher/fleet	`>=0.15.0,<0.15.1`	`0.15.1`
Go	github.com/rancher/fleet	`>=0.14.0,<0.14.5`	`0.14.5`
Go	github.com/rancher/fleet	`>=0.13.0,<0.13.10`	`0.13.10`
Go	github.com/rancher/fleet	`>=0.12.0,<0.12.14`	`0.12.14`
Go	github.com/rancher/fleet	`>=0.11.0,<0.11.13`	`0.11.13`
GO	github.com/rancher/fleet	`>= 0.11.0, < 0.11.13`	`0.11.13`
GO	github.com/rancher/fleet	`>= 0.12.0, < 0.12.14`	`0.12.14`
GO	github.com/rancher/fleet	`>= 0.13.0, < 0.13.10`	`0.13.10`
GO	github.com/rancher/fleet	`>= 0.14.0, < 0.14.5`	`0.14.5`
GO	github.com/rancher/fleet	`>= 0.15.0, < 0.15.1`	`0.15.1`

References

CWEs

CWE-863

Verify integrity in audit chain (admin only). AS-IS.