Issued:

2026-08-12

Updated:

2026-08-12

RHSA-2026:54392 - Critical: Multicluster Global Hub 1.6.5 security update

Synopsis

Critical: Multicluster Global Hub 1.6.5 security update

Type/Severity

Security Advisory: Critical

Topic

Multicluster Global Hub v1.6.5 general availability release images, which provide security fixes, bug fixes, and updated container images.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section.

Description

Red Hat multicluster global hub is a set of components that enable you to import one or more hub clusters and manage them from a single hub cluster.

Solution

For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation:

https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/multicluster_global_hub/index

Affected Products

Fixes

(none)

CVEs

• CVE-2026-42306
• This content is not included.CVE-2026-55969
• CVE-2026-66801

References

• https://access.redhat.com/security/updates/classification/

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at Security Contacts and Procedures.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.