CVE-2026-66792 PUBLISHED

Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters

Assigner: redhat
Reserved: 27.07.2026 Published: 17.08.2026 Updated: 17.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Product Status

Vendor Red Hat
Product Multicluster Global Hub
Versions Default: affected
Vendor Red Hat
Product Multicluster Global Hub
Versions Default: affected
Vendor Red Hat
Product Multicluster Global Hub
Versions Default: affected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: affected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: affected
Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected
Vendor Red Hat
Product Red Hat Openshift Data Foundation 4
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Openshift Data Foundation 4
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Openshift Data Foundation 4
Versions Default: unaffected

Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

References

Problem Types

  • Incorrect Authorization CWE