Red Hat Multicluster Global Hub RBAC Configuration privileges management

Summaryinfo

A vulnerability has been found in Red Hat Multicluster Global Hub and classified as very critical. Affected by this issue is some unknown functionality of the component RBAC Configuration. The manipulation leads to privileges management. This vulnerability is documented as CVE-2026-110744. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Red Hat Multicluster Global Hub (the affected version unknown) and classified as very critical. This issue affects an unknown part of the component RBAC Configuration. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in multicluster-global-hub-operator-bundle. The operator is configured with overly broad role-based access control (RBAC) permissions that grant cluster-wide impersonation of arbitrary users, groups, and service accounts without restriction. An attacker who compromises the operator or obtains its service account credentials can exploit this flaw to achieve privilege escalation, gaining full administrative control over the cluster.

It is possible to read the advisory at access.redhat.com. The identification of this vulnerability is CVE-2026-110744 since 10/14/2026. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/21/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Red Hat

Name

• Multicluster Global Hub

License

• open-source

Website

• Vendor: https://www.redhat.com/

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