{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84716", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-02T01:03:53.834Z", "datePublished": "2026-09-23T19:40:28.390Z", "dateUpdated": "2026-09-24T03:41:27.061Z"}, "containers": {"cna": {"title": "Automation-controller: automation-controller: instance install_bundle issues 10-year, non-revocable receptor mesh-ca certificates for caller-chosen (and case-variant impersonating) hostnames", "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": 6.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in the automation-controller instance\n                  install-bundle endpoint. When a System Administrator downloads\n                  an execution/hop node's install bundle, the controller signs an\n                  X.509 certificate with the receptor mesh certificate authority\n                  in which the Common Name, DNS subject-alternative-name, and\n                  receptor node-id are taken verbatim from the caller-chosen\n                  instance hostname, with a hard-coded ten-year validity, a random\n                  serial, and no issuance log or revocation list. Because the\n                  hostname charset validator is case-insensitive while the\n                  uniqueness validator is case-sensitive, an administrator can\n                  register a case variant of an existing control node's hostname\n                  and obtain a mesh-CA-signed certificate that TLS peers, which\n                  match hostnames case-insensitively, accept as that control node.\n                  In managed/hosted deployments \u2014 where the customer holds\n                  controller superuser but the platform operator runs the mesh \u2014\n                  this yields a long-lived, non-revocable mesh peer credential and,\n                  with an on-path position, TLS impersonation or interception of\n                  control/hybrid mesh nodes. It does not grant direct remote code\n                  execution, because receptor work submission is gated by a\n                  separate signing key not included in the bundle."}], "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", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "ansible-automation-platform-26/controller-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:ansible_automation_platform:2"]}, {"vendor": "Red Hat", "product": "Red Hat Ansible Automation Platform 2", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "ansible-automation-platform-27/controller-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:ansible_automation_platform:2"]}], "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/security/cve/CVE-2026-84716", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527199", "name": "RHBZ#2527199", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-09-23T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-266", "description": "Incorrect Privilege Assignment", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-266: Incorrect Privilege Assignment", "timeline": [{"lang": "en", "time": "2026-09-02T01:03:49.507Z", "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": "2026-09-24T03:41:27.061Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}