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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 c…

高危 CVSS 8.2
CVECVE-2026-4740
首次发现2026-07-15 14:30 UTC
披露时间2026-04-07 15:17 UTC
最后更新2026-07-15 14:30 UTC
通道状态auto

摘要

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.

中文摘要建设中,暂以英文摘要呈现(DR-003 v2)。

深度研判 · 自动通道

该漏洞尚未生成深度研判报告(DR-003 v2 AI pipeline 建设中)。

受影响产品

  • :
Lint 边界警告 (1)

以下是本次研判 lint 阶段发现的非阻塞性警告(如引用 URL 未在白名单内)。这些不影响漏洞条目可用性,仅为透明度披露(参 DR-002)。

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://blog.arfevrier.fr/open-cluster-management-cross-cluster-escape/

数据来源

  • NVD DATABASE

原始链接

时间线

  1. nvd_ingest NVD