{"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": "2026-09-28T14:10:21.720Z"}, "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"}}}}

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