CVE-2026-84712

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The\n unauthenticated health-check endpoint /api/v2/ping/\n (ApiV2PingView, AllowAny) over-serializes RBAC-gated\n automation-mesh data into its anonymous response, exposing the\n full instance inventory (node hostnames, node types, UUIDs,\n heartbeats, capacities, and exact versions), all instance-group\n names and membership, the deployment install UUID, and the\n active control node. A remote, unauthenticated attacker can use\n this to map the control plane and fingerprint software versions\n for targeted attacks. This flaw affects confidentiality only;\n it does not expose secrets, credentials, or tenant data."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "automation-controller", "defaultStatus": "affected", "versions": [{"version": "0:4.6.33-1.el8ap", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:ansible_automation_platform:2.5::el8", "cpe:/a:redhat:ansible_automation_platform:2.5::el9", "cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8", "cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9", "cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8", "cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9"]}, {"vendor": "Red Hat", "product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", 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"https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:ansible_automation_platform:2.6::el10", "cpe:/a:redhat:ansible_automation_platform:2.6::el9", "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10", "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9", "cpe:/a:redhat:ansible_automation_platform_inside:2.6::el9"], "defaultStatus": "affected", "packageName": "automation-controller", "product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:4.7.17-1.el9ap", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:ansible_automation_platform:2.6::el10", "cpe:/a:redhat:ansible_automation_platform:2.6::el9", "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10", "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9", "cpe:/a:redhat:ansible_automation_platform_inside:2.6::el9"], "defaultStatus": "affected", "packageName": "automation-controller", "product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:4.7.17-1.el9ap", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:ansible_automation_platform:2.6::el9"], "defaultStatus": "affected", "packageName": "ansible-automation-platform-26/controller-rhel9", "product": "Red Hat Ansible Automation Platform 2.6", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1789673739", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:ansible_automation_platform:2.7::el9"], "defaultStatus": "affected", "packageName": "ansible-automation-platform-27/controller-rhel9", "product": "Red Hat Ansible Automation Platform 2.7", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1789580684", "versionType": "rpm"}]}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in the automation-controller API. The\n unauthenticated health-check endpoint /api/v2/ping/\n (ApiV2PingView, AllowAny) over-serializes RBAC-gated\n automation-mesh data into its anonymous response, exposing the\n full instance inventory (node hostnames, node types, UUIDs,\n heartbeats, capacities, and exact versions), all instance-group\n names and membership, the deployment install UUID, and the\n active control node. A remote, unauthenticated attacker can use\n this to map the control plane and fingerprint software versions\n for targeted attacks. This flaw affects confidentiality only;\n it does not expose secrets, credentials, or tenant data."}], "id": "CVE-2026-84712", "lastModified": "2026-11-06T01:17:56.450", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-84712", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-24T14:29:05.289631Z", "version": "2.0.3"}}]}, "published": "2026-09-23T20:17:17.817", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:71113"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:71114"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:71177"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:71179"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-84712"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527196"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-497"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2026:71113", "cpe": "cpe:/a:redhat:ansible_automation_platform:2.6::el9", "package": "automation-controller-0:4.7.17-1.el9ap", "product_name": "Red Hat Ansible Automation Platform 2.6 for RHEL 9", "release_date": "2026-09-23T00:00:00Z"}], "bugzilla": {"description": "automation-controller: automation-controller: unauthenticated /api/v2/ping/ discloses automation-mesh instance topology and instance-group membership", "id": "2527196", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527196"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-497", "details": ["A flaw was found in the automation-controller API. The\nunauthenticated health-check endpoint /api/v2/ping/\n(ApiV2PingView, AllowAny) over-serializes RBAC-gated\nautomation-mesh data into its anonymous response, exposing the\nfull instance inventory (node hostnames, node types, UUIDs,\nheartbeats, capacities, and exact versions), all instance-group\nnames and membership, the deployment install UUID, and the\nactive control node. A remote, unauthenticated attacker can use\nthis to map the control plane and fingerprint software versions\nfor targeted attacks. This flaw affects confidentiality only;\nit does not expose secrets, credentials, or tenant data."], "name": "CVE-2026-84712", "package_state": [{"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Affected", "package_name": "ansible-automation-platform-26/controller-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Affected", "package_name": "ansible-automation-platform-27/controller-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}], "public_date": "2026-09-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-84712\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-84712"], "statement": "There is no configuration workaround that trims the /ping/ response. Operators\ncan reduce exposure by ensuring the Controller API route is not reachable by\nuntrusted networks and by fronting health checks with an infrastructure probe\nthat does not proxy /ping/ externally, but the definitive fix is to stop\nserializing instance/instance-group/install_uuid/active_node data from the\nunauthenticated endpoint.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0:4.7.17-1.el9ap,*]"}}], "enrichment": {"confidence": 86.0, "confidence_source": "matching", "scores": [{"score": 86.0, "source": "matching"}]}, "original": {"product": "Red Hat Ansible Automation Platform 2", "source": "cna", "vendor": "Red Hat"}, "product": "ansible_automation_platform", "vendor": "redhat"}], "created": "2026-09-23T20:30:09.679918+00:00", "updated": "2026-09-24T09:00:12.734508+00:00", "vendors": ["redhat", "redhat$PRODUCT$ansible_automation_platform"]}