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Vulnerability record · CVE-2026-73269 · published 12 August 2026

CVE-2026-73269: Improper privilege management vulnerability

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.

9.9 CVSS 3.1 Critical EPSS 0.56% · top 55.5% CWE-269 · Improper privilege management Awaiting Analysis
9.9CVSS 3.1 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
8 Sep 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:59556
https://access.redhat.com/errata/RHSA-2026:59557
https://access.redhat.com/errata/RHSA-2026:59558
https://access.redhat.com/errata/RHSA-2026:59559
https://access.redhat.com/errata/RHSA-2026:59579
https://access.redhat.com/errata/RHSA-2026:59593
https://access.redhat.com/security/cve/CVE-2026-73269
https://bugzilla.redhat.com/show_bug.cgi?id=2514220

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Source: NIST National Vulnerability Database (record CVE-2026-73269), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.