CVE-2026-73269: Improper Privilege Management in Red Hat Multicluster Engine for Kubernetes
A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.
CVE-2026-73269: Improper Privilege Management in Red Hat Multicluster Engine for Kubernetes
Description
A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.
CVSS v3.1
Score 9.9critical
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-08-11T17:22:38.645Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-73269","vendor":"Red Hat"}]
Threat ID: 6a7cc90bbf8831d53907731f
Added to database: 08/12/2026, 19:27:07 UTC
Last updated: 08/12/2026, 19:27:07 UTC
Views: 1
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