CVE-2026-76827

{"id": "CVE-2026-76827", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76827", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-21T16:49:03.822112Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.3}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/a:redhat:acm:2.11::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.11", "versions": [{"status": "unaffected", "version": "1787688957", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-search-indexer-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.13::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.13", "versions": [{"status": "unaffected", "version": "1787262474", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-search-indexer-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.14::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.14", "versions": [{"status": "unaffected", "version": "1787250074", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-search-indexer-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.15::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.15", "versions": [{"status": "unaffected", "version": "1787249293", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-search-indexer-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.16::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.16", "versions": [{"status": "unaffected", "version": "1787248491", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-search-indexer-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.17::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.17", "versions": [{"status": "unaffected", "version": "1787247085", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-search-indexer-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}], "published": "2026-08-19T21:17:39.227", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:60386", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60387", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60388", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60389", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60390", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60391", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-76827", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519896", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-693"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in search-indexer. This vulnerability allows a registered and authenticated managed cluster to tamper with or delete another cluster's indexed search data. This is possible because the delta-sync write paths in search-indexer do not properly restrict UPDATE/DELETE operations to data owned by the calling cluster. An attacker could exploit this by crafting specific user identifiers (UIDs) with a different cluster's prefix."}], "lastModified": "2026-09-05T18:17:29.027", "sourceIdentifier": "secalert@redhat.com"}