CVE-2026-71576

{"id": "CVE-2026-71576", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-71576", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-12T15:44:50.677334Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.7, "exploitabilityScore": 3.1}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/a:redhat:multicluster_globalhub:1.4::el9"], "vendor": "Red Hat", "product": "Multicluster Global Hub 1.4.9", "versions": [{"status": "unaffected", "version": "1788355599", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-manager-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_globalhub:1.5::el9"], "vendor": "Red Hat", "product": "Multicluster Global Hub 1.5.8", "versions": [{"status": "unaffected", "version": "1789515288", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-manager-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_globalhub:1.6::el9"], "vendor": "Red Hat", "product": "Multicluster Global Hub 1.6.6", "versions": [{"status": "unaffected", "version": "1790086176", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-manager-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_globalhub:1.7::el9"], "vendor": "Red Hat", "product": "Multicluster Global Hub 1.7.3", "versions": [{"status": "unaffected", "version": "1788377424", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-manager-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_globalhub:1.8::el9"], "vendor": "Red Hat", "product": "Multicluster Global Hub 1.8.2", "versions": [{"status": "unaffected", "version": "1788359454", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-manager-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_globalhub:1.8::el9"], "vendor": "Red Hat", "product": "Multicluster Global Hub 1.8.2", "versions": [{"status": "unaffected", "version": "1788359454", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-manager-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}], "published": "2026-08-10T17:17:36.060", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:67516", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:67842", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:68515", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:71597", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:73038", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:73419", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-71576", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512513", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-345"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en multicluster-global-hub. El componente gestor valida incorrectamente la identidad de origen de los CloudEvents entrantes en los temas de estado de Kafka. Un atacante remoto, despu\u00e9s de comprometer un hub gestionado y obtener su certificado de cliente Kafka, puede manipular la identidad de origen autoafirmada. Esto permite al atacante falsificar o eliminar datos cr\u00edticos, como informaci\u00f3n de cumplimiento, inventario y estado del cl\u00faster, perteneciente a otros hubs en la base de datos."}], "lastModified": "2026-10-24T15:10:00.190", "sourceIdentifier": "secalert@redhat.com"}