{"schema":"threatline.record/2","record":{"id":"CVE-2026-84716","aliases":[],"summary":"Automation-controller: automation-controller: instance install_bundle issues 10-year, non-revocable receptor mesh-ca certificates for caller-chosen (and case-variant impersonating) hostnames","details":"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.","categories":["Operating systems"],"product":"Red Hat Ansible Automation Platform 2.5 for RHEL 8","vendor":"Red Hat","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84716","source_modified_at":"2026-10-16T11:55:20.071Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Red Hat Ansible Automation Platform 2.5 for RHEL 8","vendor":"Red Hat","versions":[{"version":"0:4.6.33-1.el8ap","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84716","source_modified_at":"2026-10-16T11:55:20.071Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Red Hat Ansible Automation Platform 2.5 for RHEL 9","vendor":"Red Hat","versions":[{"version":"0:4.6.33-1.el9ap","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84716","source_modified_at":"2026-10-16T11:55:20.071Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Red Hat Ansible Automation Platform 2.6 for RHEL 9","vendor":"Red Hat","versions":[{"version":"0:4.7.17-1.el9ap","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84716","source_modified_at":"2026-10-16T11:55:20.071Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Red Hat Ansible Automation Platform 2.6","vendor":"Red Hat","versions":[{"version":"1789673739","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84716","source_modified_at":"2026-10-16T11:55:20.071Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Red Hat Ansible Automation Platform 2.7","vendor":"Red Hat","versions":[{"version":"1789580684","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"}],"fixed_versions":[],"cvss":6.6,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00178,"percentile":0.07022,"score_date":"2026-10-23"},"published_at":"2026-09-23T19:40:28.390Z","modified_at":"2026-10-16T11:55:20.071Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-84716","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T11:55:20.071Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-84716","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:71113","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:71114","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:71177","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:71179","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/security/cve/CVE-2026-84716","tags":["vdb-entry","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2527199","tags":["issue-tracking","x_refsource_REDHAT"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-24T13:59:02.127273Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-16T11:55:20.071Z","content_hash":"e57e3f1a29b0121a6cda30cea0ec92f730733dbbb92afd63a8e6c686b213c594"}}