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.
History

Wed, 26 Aug 2026 04:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:multicluster_engine:2.10::el9
cpe:/a:redhat:multicluster_engine:2.6::el9
cpe:/a:redhat:multicluster_engine:2.8::el9
cpe:/a:redhat:multicluster_engine:2.9::el9
References

Tue, 25 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:multicluster_engine:2.17::el9
References

Tue, 25 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:multicluster_engine cpe:/a:redhat:multicluster_engine:2.11::el9
References

Thu, 13 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Thu, 13 Aug 2026 02:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat multicluster Engine For Kubernetes
Vendors & Products Redhat multicluster Engine For Kubernetes

Wed, 12 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injection
First Time appeared Redhat
Redhat multicluster Engine
Weaknesses CWE-94
CPEs cpe:/a:redhat:multicluster_engine
Vendors & Products Redhat
Redhat multicluster Engine
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-08-12T19:05:12.287Z

Updated: 2026-09-08T12:15:30.909Z

Reserved: 2026-08-11T17:22:38.645Z

Link: CVE-2026-73268

cve-icon Vulnrichment

Updated: 2026-08-12T19:45:35.347Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-12T20:17:53.650

Modified: 2026-09-08T13:17:22.250

Link: CVE-2026-73268

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-11T00:00:00Z

Links: CVE-2026-73268 - Bugzilla