{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.3.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10676eec7f1286d7ee0769546c772c5cb9c1c72b"
            }
          ],
          "repo": "https://github.com/flowintel/flowintel",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "CIRCL",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81817.json"
  },
  "details": "Affected versions of Flowintel contain an insecure direct object reference / broken object-level authorization issue across numerous task endpoints.\n\n\nThe routes generally received both a case identifier and a task identifier, but previously they did not enforce that the task actually belonged to the supplied case. As a result, an authenticated user with editor-level access to one case could potentially substitute the ID of a task from another case and invoke operations against that foreign task.\n\n\nThe patch introduces task_case_bound_required, which loads both objects and returns 404 unless the task belongs to the requested case. This protection is applied to edit, delete, note, assignment, status, file, export, MISP-linking, subtask, external-reference, and other task-related endpoints.\n\nThe fix also adds explicit checks that a requested note_id belongs to the current task before returning or exporting it, closing related cross-object access paths.\n\nVersion impacted =\u003e3.3.0",
  "id": "CVE-2026-81817",
  "modified": "2026-08-30T03:31:02.225465461Z",
  "published": "2026-08-27T13:10:30.500Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81817.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81817"
    },
    {
      "type": "FIX",
      "url": "https://github.com/flowintel/flowintel/commit/10676eec7f1286d7ee0769546c772c5cb9c1c72b.patch"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/flowintel/flowintel"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Flowintel Missing Task-to-Case Authorization Allows Cross-Case Task Modification"
}