{"schema_version":"1","data":[{"id":3869,"advisory_id":"ac1d13e8-1cbd-4bfe-a25e-937a1366ba57","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-71577","source_published_at":"2026-08-10T16:43:20.185+00:00","published_at":"2026-10-24T21:42:38.342829+00:00","extraction_method":"structured","technologies":["core-cve","multicluster-global-hub-1-4-9","multicluster-global-hub-1-5-8","multicluster-global-hub-1-6-6","multicluster-global-hub-1-7-3","multicluster-global-hub-1-8-2"],"cve_ids":["CVE-2026-71577"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Multicluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migration","summary":"A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.","evidence":"cve:CVE-2026-71577","products":[{"name":{"value":"Multicluster Global Hub 1.4.9","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]},{"name":{"value":"Multicluster Global Hub 1.5.8","evidence":"/containers/cna/affected/1/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]},{"name":{"value":"Multicluster Global Hub 1.6.6","evidence":"/containers/cna/affected/2/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]},{"name":{"value":"Multicluster Global Hub 1.7.3","evidence":"/containers/cna/affected/3/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]},{"name":{"value":"Multicluster Global Hub 1.8.2","evidence":"/containers/cna/affected/4/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]},{"name":{"value":"Multicluster Global Hub 1.8.2","evidence":"/containers/cna/affected/5/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-71577","aliases":["CVE-2026-71577"],"metrics":[{"other":{"type":"Red Hat severity rating","content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"}}},{"format":"CVSS","cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}}],"affected":[{"cpes":["cpe:/a:redhat:multicluster_globalhub:1.4::el9"],"vendor":"Red Hat","product":"Multicluster Global Hub 1.4.9","versions":[{"status":"unaffected","version":"1788355417","lessThan":"*","versionType":"rpm"}],"packageName":"multicluster-globalhub/multicluster-globalhub-rhel9-operator","collectionURL":"https://catalog.redhat.com/software/containers/","defaultStatus":"affected"},{"cpes":["cpe:/a:redhat:multicluster_globalhub:1.5::el9"],"vendor":"Red Hat","product":"Multicluster Global Hub 1.5.8","versions":[{"status":"unaffected","version":"1789478830","lessThan":"*","versionType":"rpm"}],"packageName":"multicluster-globalhub/multicluster-globalhub-rhel9-operator","collectionURL":"https://catalog.redhat.com/software/containers/","defaultStatus":"affected"},{"cpes":["cpe:/a:redhat:multicluster_globalhub:1.6::el9"],"vendor":"Red Hat","product":"Multicluster Global Hub 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