{"id":"CVE-2026-94290","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-94290","generatedAt":"2026-11-04T11:49:43.256Z","title":"The controller did not sufficiently restrict which kubeconfig secrets a Fleet Cluster object was allowed to reference.","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.","published":"2026-11-02T16:17:45.000Z","lastModified":"2026-11-03T05:18:55.000Z","status":"Awaiting Analysis","sourceIdentifier":"meissner@suse.de","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-250"],"affected":[],"epss":{"score":0.00499,"percentile":0.42854,"date":"2026-11-03","history":[{"date":"2026-11-03","score":0.00499,"percentile":0.42854}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-11-02T16:17:45.000Z","detail":{"score":"9.1","severity":"CRITICAL","publishedAt":"2026-11-02T16:17:45.190Z"},"summary":"New CVE, critical severity (CVSS 9.1)."}],"references":[{"url":"https://github.com/rancher/fleet/security/advisories/GHSA-qfmw-gw96-ffcr","source":"meissner@suse.de"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-94290","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}