CVE-2026-66792: fallo crítico en Red Hat Multicluster Global Hub 1.4.9
Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
Publicada el · Actualizada el
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28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.9epss 0.7%
A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker the ability to deploy resources into any namespace with the elevated permissions of the controller's Service Account, potentially leading to unauthorized access and control over cluster resources.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Productos afectados
Red Hat · Multicluster Global Hub 1.4.9Red Hat · Multicluster Global Hub 1.5.8Red Hat · Multicluster Global Hub 1.6.6Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.11Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.13Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.14Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.15Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat Openshift Data Foundation 4CVEs relacionadas — Red Hat Multicluster Global Hub 1.4.9
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-71577MEDIUMMulticluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migrationEPSS 0.4%CVE-2026-71576HIGHMulticluster-global-hub: multicluster-global-hub: manager trusts self-asserted evt.source() for leaf-hub identity in all status handlersEPSS 0.3%
Referencias
https://access.redhat.com/errata/RHSA-2026:60386https://access.redhat.com/errata/RHSA-2026:60387https://access.redhat.com/errata/RHSA-2026:60388https://access.redhat.com/errata/RHSA-2026:60389https://access.redhat.com/errata/RHSA-2026:60390https://access.redhat.com/errata/RHSA-2026:60391https://access.redhat.com/errata/RHSA-2026:67516https://access.redhat.com/errata/RHSA-2026:71597https://access.redhat.com/errata/RHSA-2026:73419https://access.redhat.com/security/cve/CVE-2026-66792https://bugzilla.redhat.com/show_bug.cgi?id=2507537