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.
References8
- access.redhat.com/errata/RHSA-2026:59556
- access.redhat.com/errata/RHSA-2026:59557
- access.redhat.com/errata/RHSA-2026:59558
- access.redhat.com/errata/RHSA-2026:59559
- access.redhat.com/errata/RHSA-2026:59579
- access.redhat.com/errata/RHSA-2026:59593
- access.redhat.com/security/cve/CVE-2026-73269
- bugzilla.redhat.com/show_bug.cgi?id=2514220
Metrics
- CVSS 3.1
-
9.9
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 47 · as of 12 November 2026
- CWE
- CWE-269
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