{"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":"2026-09-24T15:05:23.389Z"},"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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-24T13:59:02.127273Z","id":"CVE-2026-84716","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-09-24T15:05:23.389Z"}}]}}