CVE-2026-41050

critical

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

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

9.9

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

CVSS v4 NEW

—

not yet in upstream

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 mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

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

Community-verified mitigations for this CVE will appear above when contributors publish them.

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