{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71577", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-08-07T14:20:37.114Z", "datePublished": "2026-08-10T16:43:20.185Z", "dateUpdated": "2026-08-10T16:43:20.185Z"}, "containers": {"cna": {"title": "Multicluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migration", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "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."}], "affected": [{"vendor": "Red Hat", "product": "Multicluster Global Hub", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:multicluster_globalhub"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-71577", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512514", "name": "RHBZ#2512514", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-08-10T14:38:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-522", "description": "Insufficiently Protected Credentials", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-522: Insufficiently Protected Credentials", "workarounds": [{"lang": "en", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}], "timeline": [{"lang": "en", "time": "2026-08-07T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-10T14:38:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-08-10T16:43:20.185Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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