{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93538", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-09-18T09:08:10.294Z", "datePublished": "2026-09-28T14:10:21.720Z", "dateUpdated": "2026-09-28T16:22:26.562Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-09-28T14:10:21.720Z"}, "title": "Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet", "datePublic": "2026-09-28T14:05:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-290", "description": "CWE-290 Authentication bypass by spoofing", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-639", "description": "CWE-639 Authorization bypass through User-Controlled key", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-122", "descriptions": [{"lang": "en", "value": "CAPEC-122 Privilege Abuse"}]}, {"capecId": "CAPEC-195", "descriptions": [{"lang": "en", "value": "CAPEC-195 Principal Spoof"}]}], "affected": [{"vendor": "SUSE", "product": "Rancher", "packageName": "Fleet", "repo": "https://github.com/rancher/fleet/", "versions": [{"status": "affected", "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"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.16.0", "versionEndExcluding": "0.16.1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.15.0", "versionEndExcluding": "0.15.6"}, {"vulnerable": true, "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.14.0", "versionEndExcluding": "0.14.10"}, {"vulnerable": true, "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.13.0", "versionEndExcluding": "0.13.15"}, {"vulnerable": true, "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.12.0", "versionEndExcluding": "0.12.19"}]}]}], "descriptions": [{"lang": "en", "value": "A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated\u00a0cluster 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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated&nbsp;cluster registration, cluster labels supplied by the registering agent, including labels in the reserved <code>management.cattle.io/</code> namespace such as the cluster display name label, were applied to the resulting upstream <code>Cluster</code> object. Because Fleet resolves <code>GitRepo</code> and <code>Bundle</code> 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.<br>This 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."}]}], "references": [{"url": "https://github.com/rancher/fleet/security/advisories/GHSA-h9p5-fp5h-qpqr", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"}}], "credits": [{"lang": "en", "value": "https://github.com/Pig-Tail", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-93538", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-28T15:46:41.479078Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-28T16:22:26.562Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "Fleet", "product": "Rancher", "repo": "https://github.com/rancher/fleet/", "vendor": "SUSE", "versions": [{"lessThan": "0.16.1", "status": "affected", "version": "0.16.0", "versionType": "semver"}, {"lessThan": "0.15.6", "status": "affected", "version": "0.15.0", "versionType": "semver"}, {"lessThan": "0.14.10", "status": "affected", "version": "0.14.0", "versionType": "semver"}, {"lessThan": "0.13.15", "status": "affected", "version": "0.13.0", "versionType": "semver"}, {"lessThan": "0.12.19", "status": "affected", "version": "0.12.0", "versionType": "semver"}]}], "source": "meissner@suse.de"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated\u00a0cluster 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."}], "id": "CVE-2026-93538", "lastModified": "2026-09-28T15:17:24.927", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "meissner@suse.de", "type": "Secondary"}]}, "published": "2026-09-28T15:17:24.927", "references": [{"source": "meissner@suse.de", "url": "https://github.com/rancher/fleet/security/advisories/GHSA-h9p5-fp5h-qpqr"}], "sourceIdentifier": "meissner@suse.de", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-290"}, {"lang": "en", "value": "CWE-639"}], "source": "meissner@suse.de", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.16.0,0.16.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.15.0,0.15.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.14.0,0.14.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.13.0,0.13.15)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.12.0,0.12.19)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Rancher", "source": "cna", "vendor": "SUSE"}, "product": "rancher", "vendor": "suse"}], "created": "2026-09-28T15:45:02.412153+00:00", "updated": "2026-09-28T16:00:03.415630+00:00", "vendors": ["suse", "suse$PRODUCT$rancher"]}