8.2
CVSS 3.1
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Атакува се локално, без особени условия, с администраторски права и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- Red Hat multicluster engine for Kubernetes 2.1: от 1776881164 нататък
- Red Hat multicluster engine for Kubernetes 2.11: от 1777478390 нататък
- Red Hat multicluster engine for Kubernetes 2.6: от 1775977180 нататък
- Red Hat multicluster engine for Kubernetes 2.8: от 1775638726 нататък
- Red Hat multicluster engine for Kubernetes 2.9: от 1776445095 нататък
- Red Hat Multicluster Engine for Kubernetes
- Red Hat Multicluster Engine for Kubernetes
- Red Hat Multicluster Engine for Kubernetes
- Red Hat Multicluster Engine for Kubernetes
- Red Hat Multicluster Engine for Kubernetes
- Red Hat Multicluster Engine for Kubernetes
Вид слабост
История
- 7 април 2026 Публикувано
Други уязвимости в Red Hat multicluster engine for Kubernetes 2.1
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-4740
- https://nvd.nist.gov/vuln/detail/CVE-2026-4740
- https://access.redhat.com/errata/RHSA-2026:11414
- https://access.redhat.com/errata/RHSA-2026:13542
- https://access.redhat.com/errata/RHSA-2026:13853
- https://access.redhat.com/errata/RHSA-2026:8218
- https://access.redhat.com/errata/RHSA-2026:9848
- 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://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4740.json