{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-84712", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-02T00:44:46.968Z", "datePublished": "2026-09-23T19:40:22.582Z", "dateUpdated": "2026-10-16T11:55:07.623Z" }, "containers": { "cna": { "title": "Automation-controller: automation-controller: unauthenticated /api/v2/ping/ discloses automation-mesh instance topology and instance-group membership", "metrics": [ { "other": { "content": { "value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "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" }, "format": "CVSS" } ], "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." } ], "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 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "automation-controller", "defaultStatus": "affected", "versions": [ { "version": "0:4.6.33-1.el9ap", "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 2.6 for RHEL 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "automation-controller", "defaultStatus": "affected", "versions": [ { "version": "0:4.7.17-1.el9ap", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "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" ] }, { "vendor": "Red Hat", "product": "Red Hat Ansible Automation Platform 2.6", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "ansible-automation-platform-26/controller-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1789673739", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:ansible_automation_platform:2.6::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Ansible Automation Platform 2.7", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "ansible-automation-platform-27/controller-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1789580684", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:ansible_automation_platform:2.7::el9" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHSA-2026:71113", "name": "RHSA-2026:71113", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:71114", "name": "RHSA-2026:71114", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:71177", "name": "RHSA-2026:71177", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:71179", "name": "RHSA-2026:71179", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2026-84712", "tags": [ "vdb-entry", "x_refsource_REDHAT" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527196", "name": "RHBZ#2527196", "tags": [ "issue-tracking", "x_refsource_REDHAT" ] } ], "datePublic": "2026-09-23T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-497", "description": "Exposure of Sensitive System Information to an Unauthorized Control Sphere", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere", "workarounds": [ { "lang": "en", "value": "There is no configuration option that trims the data returned by the unauthenticated /api/v2/ping/ endpoint (also reachable as /api/controller/v2/ping/). Exposure can be reduced by restricting network access to the automation-controller API so that only trusted networks and health probes can reach it: block or restrict external access to the /api/v2/ping/ and /api/controller/v2/ping/ routes at the reverse proxy, load balancer, or firewall, and front health checks with an infrastructure-level probe that does not proxy the /ping/ endpoint to untrusted clients. The definitive fix is to update to a version of automation-controller that no longer serializes instance, instance-group, install UUID, and active-node data in the unauthenticated response." } ], "timeline": [ { "lang": "en", "time": "2026-09-02T00:44:52.036Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-09-23T00:00:00.000Z", "value": "Made public." } ], "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-16T11:55:07.623Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-24T14:29:05.289631Z", "id": "CVE-2026-84712", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T14:32:34.757Z" } } ] } }