CVE-2026-71576: fallo de gravedad alta en Red Hat Multicluster Global Hub 1.4.9
Multicluster-global-hub: multicluster-global-hub: manager trusts self-asserted evt.source() for leaf-hub identity in all status handlers
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.5epss 0.3%
A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source identity. This allows the attacker to falsify or delete critical data, such as compliance, inventory, and cluster health information, belonging to other hubs in the database.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
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 · Multicluster Global Hub 1.7.3Red Hat · Multicluster Global Hub 1.8.2CVEs relacionadas — Red Hat Multicluster Global Hub 1.4.9
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-66792CRITICALMulticloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clustersEPSS 0.7%CVE-2026-71577MEDIUMMulticluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migrationEPSS 0.4%
Referencias
https://access.redhat.com/errata/RHSA-2026:67516https://access.redhat.com/errata/RHSA-2026:67842https://access.redhat.com/errata/RHSA-2026:68515https://access.redhat.com/errata/RHSA-2026:71597https://access.redhat.com/errata/RHSA-2026:73038https://access.redhat.com/errata/RHSA-2026:73419https://access.redhat.com/security/cve/CVE-2026-71576https://bugzilla.redhat.com/show_bug.cgi?id=2512513