{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.77.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c0c9dd609140139efcb37c47e2afa79ed57e6c84"
            }
          ],
          "repo": "https://github.com/velocidex/velociraptor",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "rapid7",
    "cwe_ids": [
      "CWE-476",
      "CWE-703"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18638.json"
  },
  "details": "Any authenticated Velociraptor user — including one holding only the readerrole — can terminate the entire server process with a single request, by calling SetPassword with a username that does not exist.",
  "id": "CVE-2026-18638",
  "modified": "2026-08-30T03:30:47.888503884Z",
  "published": "2026-08-11T15:00:53.332Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Velocidex/velociraptor/"
    },
    {
      "type": "ADVISORY",
      "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-18638/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18638.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18638"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Velociraptor server crash via the SetPassword API"
}