# CVE-2026-73269

## Summary

- **CVE ID:** CVE-2026-73269
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-269
- **Published:** Aug 12, 2026
- **Last Modified:** Sep 8, 2026

## 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.

## Affected Products

- Red Hat — multicluster engine for Kubernetes 2.9.0 (1787201646)
- Red Hat — multicluster engine for Kubernetes 2.11 (1787238383)
- Red Hat — multicluster engine for Kubernetes 2.17 (1786750700)
- Red Hat — multicluster engine for Kubernetes 2.10 (1787201612)
- Red Hat — multicluster engine for Kubernetes 2.6 (1787264185)
- Red Hat — multicluster engine for Kubernetes 2.8 (1787259011)
- Red Hat — multicluster engine for Kubernetes 2.9 (1787201646)
- Red Hat — multicluster engine for Kubernetes 2.1 (1787201612)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.33%
- **EPSS Percentile:** 26.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._