High severity · published Oct 21, 2026
CVE-2026-110744
Multicluster-global-hub-operator-bundle: operator serviceaccount granted unrestricted impersonation of users, groups and serviceaccounts cluster-wide
New
7.2
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MG
Multicluster Global Hub · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110744
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110744
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-110744
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2523007
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