CVE-2026-71577

{"id": "CVE-2026-71577", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-71577", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-11T01:59:24.928197Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.8}]}, "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": "1788355417", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "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": "1789478830", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "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": "1790085268", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "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": "1788372439", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "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": "1788359461", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "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": "1790638386", "lessThan": "*", "versionType": "rpm"}], "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}], "published": "2026-08-10T17:17:36.197", "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-2026-71577", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512514", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-522"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en multicluster-global-hub. Durante una ManagedClusterMigration, el sistema concede incorrectamente a todos los hubs gestionados acceso de lectura a un tema de comunicaci\u00f3n compartido. Esto permite a un hub gestionado comprometido interceptar y recopilar kubeconfigs de arranque sensibles, que contienen tokens del servidor API destinados a otros hubs. Estos tokens tienen una validez extendida de aproximadamente 9.86 a\u00f1os, lo que aumenta significativamente el riesgo de acceso no autorizado y revelaci\u00f3n de informaci\u00f3n a otros clusters gestionados."}], "lastModified": "2026-10-24T15:10:00.190", "sourceIdentifier": "secalert@redhat.com"}