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Vulnerability details

CVE-2026-94290

SUSE Rancher

Privilege escalation to cluster-admin on the Rancher local cluster through Fleet's agent management controller

CVSS 3.1
9.1Critical

Official 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.

CVSS scores

ScoreVersionSourceVector
9.1Critical 3.1 CVEProject cvelistV5 (CNA) (suse) CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
SUSE Rancher 0.13.0 ≤ v < 0.13.17 CVEProject cvelistV5 (CNA)
SUSE Rancher 0.14.0 ≤ v < 0.14.12 CVEProject cvelistV5 (CNA)
SUSE Rancher 0.15.0 ≤ v < 0.15.8 CVEProject cvelistV5 (CNA)
SUSE Rancher 0.16.0 ≤ v < 0.16.3 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-11-02
Last updated
2026-11-03
State
Published
Assigner (CNA)
suse
Kolun priority
25 · Low

Exploit prediction (EPSS)

0.49%
Probability of exploitation in 30 days
43%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-250
    Execution with unnecessary privileges