Description (CNA)
A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / multicluster engine for Kubernetes 2.10 | unaffected 1787201612 before * |
| Red Hat / multicluster engine for Kubernetes 2.11 | unaffected 1787238383 before * |
| Red Hat / multicluster engine for Kubernetes 2.17 | unaffected 1786750700 before * |
| Red Hat / multicluster engine for Kubernetes 2.6 | unaffected 1787264185 before * |
| Red Hat / multicluster engine for Kubernetes 2.8 | unaffected 1787259011 before * |
| Red Hat / multicluster engine for Kubernetes 2.9 | unaffected 1787201646 before * |
CWE
CWE-94
References
- 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-2026-73268
- https://bugzilla.redhat.com/show_bug.cgi?id=2514219
ADP enrichment
No English description supplied.
No references supplied.