CVE-2026-71577

Name of the Vulnerable Software and Affected Versions multicluster-global-hub (affected versions not specified)

Description A flaw occurs during a ManagedClusterMigration where 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, increasing the risk of unauthorized access and information disclosure to other managed clusters.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.