CVE-2026-4740
HIGH SEVERITYCVSS Score & Metrics
Base Score
8.2 / 10
Vector String
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Vulnerability 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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-295
Source
NVD
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