CVE-2026-66792
Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker the ability to deploy resources into any namespace with the elevated permissions of the controller's Service Account, potentially leading to unauthorized access and control over cluster resources.
| CWE | CWE-863 |
| Vendor | red hat |
| Product | multicluster global hub |
| Published | Aug 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Multicluster Global Hub
All versions affected Red Hat / Multicluster Global Hub
All versions affected Red Hat / Multicluster Global Hub
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat Openshift Data Foundation 4
All versions affected Red Hat / Red Hat Openshift Data Foundation 4
All versions affected Red Hat / Red Hat Openshift Data Foundation 4
All versions affected