Go/open-cluster-management.io/ocm CVE-2026-4740: high 8.2, EPSS 0.15%
Open Cluster Management (OCM): Cross-cluster privilege escalation via improper Kubernetes client certificate renewal validation
Action: Upgrade open-cluster-management.io/ocm to 1.2.1 or later.
go get open-cluster-management.io/ocm@v1.2.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.2.1 | - |
Fixed versions
| 1.2.1 |
Sources
- osv: GHSA-q4gv-pjmh-c735
- https://nvd.nist.gov/vuln/detail/CVE-2026-4740
- https://github.com/open-cluster-management-io/ocm/commit/9e70cc1e21a15239c81111062c0b37df4b5a8026
- https://access.redhat.com/security/cve/CVE-2026-4740
- https://blog.arfevrier.fr/open-cluster-management-cross-cluster-escape
- https://bugzilla.redhat.com/show_bug.cgi?id=2450590
- https://github.com/open-cluster-management-io/OCM
CVE-2026-4740 · published · modified · JSON