{ "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": "2026-09-24T06:09:32.449Z" }, "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 — where the customer holds\n controller superuser but the platform operator runs the mesh —\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 2.6", "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-2026-84716", "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": "2026-09-24T06:09:32.449Z" }, "x_generator": { "engine": "cvelib 1.8.0" } } } }