CVE-2026-94290 (GCVE-0-2026-94290)
Vulnerability from cvelistv5 – Published: 2026-11-02 15:29 – Updated: 2026-11-03 04:55
VLAI
EPSS
VEX
Title
Privilege escalation to cluster-admin on the Rancher local cluster through Fleet's agent management controller
Summary
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.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 00:00 UTC
CWE
- CWE-250 - Execution with unnecessary privileges
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| SUSE | Rancher |
Affected:
0.16.0 , < 0.16.3
(semver)
Affected: 0.15.0 , < 0.15.8 (semver) Affected: 0.14.0 , < 0.14.12 (semver) Affected: 0.13.0 , < 0.13.17 (semver) cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* |
Date Public
2026-11-02 15:25
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.