CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HCVE-2026-94290
Critical (9.1) in suse rancher. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.
On this page
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
- EPSS
- 0.5% (unchanged from 0.5% a week ago) estimated probability of exploitation activity in the next 30 days; 43rd percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-02. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-250 Execution with Unnecessary Privileges
- Published
- Modified
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
Ask an AI about this CVE
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Explain CVE-2026-94290 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-94290?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-94290?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-94290 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| SUSE Rancher | from 0.16.0 before 0.16.3 |
| SUSE Rancher | from 0.15.0 before 0.15.8 |
| SUSE Rancher | from 0.14.0 before 0.14.12 |
| SUSE Rancher | from 0.13.0 before 0.13.17 |
Attack patterns (CAPEC)
- CAPEC-69 Target Programs with Elevated Privileges Likelihood: High · Severity: Very High
- CAPEC-104 Cross Zone Scripting Likelihood: Medium · Severity: High
- CAPEC-470 Expanding Control over the Operating System from the Database Severity: Very High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.