CVE-2026-73268
Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injection
- State
- Published
- Severity
- 9.9 Critical
- Published
- Aug 12, 2026
- Updated
- Sep 29, 2026
- Reserved
- Aug 11, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-94 Improper Control of Generation of Code ('Code Injection')
Affected Products
| Product | Versions |
|---|---|
multicluster engine for Kubernetes 2.10Red Hat |
|
multicluster engine for Kubernetes 2.11Red Hat |
|
multicluster engine for Kubernetes 2.17Red Hat |
|
multicluster engine for Kubernetes 2.6Red Hat |
|
multicluster engine for Kubernetes 2.8Red Hat |
|
multicluster engine for Kubernetes 2.9Red Hat |
|
References
- RHSA-2026:59556vendor-advisory
- RHSA-2026:59557vendor-advisory
- RHSA-2026:59558vendor-advisory
- RHSA-2026:59559vendor-advisory
- RHSA-2026:59579vendor-advisory
- RHSA-2026:59593vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-73268vdb-entry
- RHBZ#2514219issue-tracking
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.