CVE-2026-66793

{"id": "CVE-2026-66793", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-66793", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-18T17:59:33.712099Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "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": "1787683327", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-governance-policy-addon-controller-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": "1787259078", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-governance-policy-addon-controller-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": "1787080755", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-governance-policy-addon-controller-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": "1787238535", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-governance-policy-addon-controller-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": "1787080753", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-governance-policy-addon-controller-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": "1787227696", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-governance-policy-addon-controller-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}], "published": "2026-08-18T15:17:00.140", "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-2026-66793", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507538", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in the governance-policy-addon-controller component of Red Hat Advanced Cluster Management for Kubernetes. A user with permissions to annotate the namespaced ManagedClusterAddOn resource can override the governance-policy container image. This allows an attacker to run a controlled image with cluster-admin privileges on the managed cluster, leading to arbitrary code execution and privilege escalation."}], "lastModified": "2026-08-27T04:16:46.047", "sourceIdentifier": "secalert@redhat.com"}