VULNERABILITY INTELLIGENCE
CVE-2026-71577
CVSS score6.3 MEDIUM
EPSS probability0.42%
CISA KEVNot currently listed
Published2026-08-10
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Description
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.
Weakness classification
- secalert@redhat.com: CWE-522