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"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"
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"title": "Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet",
"datePublic": "2026-09-28T14:05:00.000Z",
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"descriptions": [
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"lang": "en",
"cweId": "CWE-290",
"description": "CWE-290 Authentication bypass by spoofing",
"type": "CWE"
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},
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"lang": "en",
"cweId": "CWE-639",
"description": "CWE-639 Authorization bypass through User-Controlled key",
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"capecId": "CAPEC-122",
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"lang": "en",
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"capecId": "CAPEC-195",
"descriptions": [
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"lang": "en",
"value": "CAPEC-195 Principal Spoof"
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"affected": [
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"vendor": "SUSE",
"product": "Rancher",
"packageName": "Fleet",
"repo": "https://github.com/rancher/fleet/",
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"status": "affected",
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"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.",
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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."
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"url": "https://github.com/rancher/fleet/security/advisories/GHSA-h9p5-fp5h-qpqr",
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