CVE-2026-94290

CRITICAL
INFO Priority: 0.05 BB Relevance: 63/100
Published: 2026-11-02 Modified: 2026-11-03 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Changed
C: High
I: High
A: High

Description

SUSE Rancher Fleet clusters reference a kubeconfig secret that the controller uses to install and manage a Fleet agent on the target cluster. The controller did not sufficiently restrict which kubeconfig secrets a Fleet Cluster object was allowed to reference. As a result, a Fleet cluster defined in a namespace an ordinary user controls could be associated with administrative credentials for the management cluster itself, causing the controller to manage the management cluster on that user's behalf and to run that user's Fleet content there with elevated privileges. This affects SUSE Rancher Fleet 0.16.0 up to 0.16.3, 0.15.0 up to 0.15.8, 0.14.0 up to 0.14.12, 0.13.0 up to 0.13.17 and possible older versions.

Affected Software (12)

VendorProductVersion
SUSE Rancher 0.16.0 < 0.16.3
SUSE Rancher 0.15.0 < 0.15.8
SUSE Rancher 0.14.0 < 0.14.12
SUSE Rancher 0.13.0 < 0.13.17
SUSE Rancher 0.16.0 < 0.16.3
SUSE Rancher 0.15.0 < 0.15.8
SUSE Rancher 0.14.0 < 0.14.12
SUSE Rancher 0.13.0 < 0.13.17
SUSE Rancher 0.16.0 < 0.16.3
SUSE Rancher 0.15.0 < 0.15.8
SUSE Rancher 0.14.0 < 0.14.12
SUSE Rancher 0.13.0 < 0.13.17

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.50%
Raw Score 0.004990
Percentile 42.9%
Date 2026-11-03

Intelligence Sources

mitre ref →
nvd ref →