CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.2. It affects Kubernetes.
CVE
CVE-2026-4740
Severity
HIGH
CVSS
8.2
EPSS
0.11%
Kubernetes
Original NVD Description
A flaw was found in Open Cluster Management (OCM), the technology underlying Red Hat Advanced Cluster Management (ACM). Improper validation of Kubernetes client certificate renewal allows a managed cluster administrator to forge a client certificate that can be approved by the OCM controller. This enables cross-cluster privilege escalation and may allow an attacker to gain control over other managed clusters, including the hub cluster.
Related CVEs
Other vulnerabilities affecting the same vendor(s)