CVE-2026-71577
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to
CVSS
6.3
Medio
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 10 ago 2026 · Última mod.: 10 ago 2026 · CWE-522
Sin historial EPSS suficiente todavía.
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.