CVE-2026-4740 - CERT CVE
ID CVE-2026-4740
Sažetak 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.
Reference
CVSS
Base: 8.2
Impact: 6.0
Exploitability:1.5
Pristup
VektorSloženostAutentikacija
LOCAL LOW HIGH
Impact
PovjerljivostCjelovitostDostupnost
HIGH HIGH HIGH
CVSS vektor CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Zadnje važnije ažuriranje 07-04-2026 - 15:17
Objavljeno 07-04-2026 - 15:17