MEDIUM 6.3 NVD
CVE-2026-71577
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communicat
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.
References
- https://access.redhat.com/security/cve/CVE-2026-71577
- https://bugzilla.redhat.com/show_bug.cgi?id=2512514
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-08-10 via NVD.
vulnfeed aggregates 7833 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.