SUSE Rancher up to 0.13.16/0.14.11/0.15.7/0.16.2 Fleet privileges management

Summaryinfo

A vulnerability, which was classified as very critical, has been found in SUSE Rancher up to 0.13.16/0.14.11/0.15.7/0.16.2. Impacted is an unknown function of the component Fleet. Performing a manipulation results in privileges management. This vulnerability is known as CVE-2026-94290. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in SUSE Rancher up to 0.13.16/0.14.11/0.15.7/0.16.2. This affects an unknown functionality of the component Fleet. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-94290 since 09/21/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/03/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 0.13.17, 0.14.12, 0.15.8 or 0.16.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-4245). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Open Source Fleet

Productinfo

Vendor

• SUSE

Name

• Rancher

Version

• 0.13.0
• 0.13.1
• 0.13.2
• 0.13.3
• 0.13.4
• 0.13.5
• 0.13.6
• 0.13.7
• 0.13.8
• 0.13.9
• 0.13.10
• 0.13.11
• 0.13.12
• 0.13.13
• 0.13.14
• 0.13.15
• 0.13.16
• 0.14.0
• 0.14.1
• 0.14.2
• 0.14.3
• 0.14.4
• 0.14.5
• 0.14.6
• 0.14.7
• 0.14.8
• 0.14.9
• 0.14.10
• 0.14.11
• 0.15.0
• 0.15.1
• 0.15.2
• 0.15.3
• 0.15.4
• 0.15.5
• 0.15.6
• 0.15.7
• 0.16.0
• 0.16.1
• 0.16.2

License

• open-source

Website

• Vendor: https://www.suse.com/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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