CVE-2026-71576: falha de alta gravidade em 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
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
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
Produtos afetados
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
No mesmo produto, das mais perigosas para as 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%
Referências
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