{"id":"CVE-2026-104615","title":"Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace","summary":"A security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity cla…","severity":"high","cvss":7.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H","cvssSource":"cna","cwe":["CWE-290"],"vendor":"SUSE","product":"Fleett","affected":["Fleett >= 0.16.0 < 0.16.3","Fleett >= 0.15.0. < 0.15.17","Fleett >= 0.14.0 < 0.14.12","Fleett >= 0.13 < 0.13.17","Fleett <= 0.12"],"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T15:49:01.402Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104615","references":[{"url":"https://github.com/rancher/fleet/security/advisories/GHSA-gx8v-2929-9q95"}],"tags":["cve.org"],"epss":0.00221,"epssPercentile":0.12826,"ingestedAt":"2026-11-05T16:07:30.482Z","slug":"CVE-2026-104615","body":"## Overview\n\nA security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token.\n\n## Affected\n\n- `Fleett >= 0.16.0 < 0.16.3`\n- `Fleett >= 0.15.0. < 0.15.17`\n- `Fleett >= 0.14.0 < 0.14.12`\n- `Fleett >= 0.13 < 0.13.17`\n- `Fleett <= 0.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":43.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}