{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-93538","sourceIdentifier":"meissner@suse.de","published":"2026-09-28T15:17:24.927","lastModified":"2026-10-07T17:13:37.180","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster display name label, were applied to the resulting upstream Cluster object. Because Fleet resolves GitRepo and Bundle targets from those cluster labels, a party able to register a cluster into a Fleet workspace namespace shared with other tenants could cause its own cluster to satisfy targeting rules that administrators intended for a different cluster.\nThis affects SUSE Rancher Fleet 0.16 before 0.16.1, 0.15 before 0.15.6, 0.14 before 0.14.10, 0.13 before 0.13.15, 0.12 before 0.12.19 and older versions."}],"affected":[{"source":"meissner@suse.de","affectedData":[{"vendor":"SUSE","product":"Rancher","defaultStatus":"unaffected","packageName":"Fleet","repo":"https://github.com/rancher/fleet/","versions":[{"version":"0.16.0","lessThan":"0.16.1","versionType":"semver","status":"affected"},{"version":"0.15.0","lessThan":"0.15.6","versionType":"semver","status":"affected"},{"version":"0.14.0","lessThan":"0.14.10","versionType":"semver","status":"affected"},{"version":"0.13.0","lessThan":"0.13.15","versionType":"semver","status":"affected"},{"version":"0.12.0","lessThan":"0.12.19","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"meissner@suse.de","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-28T15:46:41.479078Z","id":"CVE-2026-93538","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"meissner@suse.de","type":"Secondary","description":[{"lang":"en","value":"CWE-290"},{"lang":"en","value":"CWE-639"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:*","versionStartIncluding":"0.12.0","versionEndExcluding":"0.12.19","matchCriteriaId":"9C3A4950-829F-44AF-83AB-C8FC87FBB8C0"},{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:*","versionStartIncluding":"0.13.0","versionEndExcluding":"0.13.15","matchCriteriaId":"F7A1E752-44EF-4C11-BBBE-C39D4B010A25"},{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:*","versionStartIncluding":"0.14.0","versionEndExcluding":"0.14.10","matchCriteriaId":"B8184066-0D67-47E0-9F2C-56206E1409EF"},{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:*","versionStartIncluding":"0.15.0","versionEndExcluding":"0.15.6","matchCriteriaId":"D82954AC-0323-4DE6-B8D8-2968EB816CC3"},{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:*","versionStartIncluding":"0.16.0","versionEndExcluding":"0.16.1","matchCriteriaId":"38F17767-68ED-4F10-BCD6-590C99E8F478"}]}]}],"references":[{"url":"https://github.com/rancher/fleet/security/advisories/GHSA-h9p5-fp5h-qpqr","source":"meissner@suse.de","tags":["Vendor Advisory"]}]}}