{
 "id": "AIR-2026-1073",
 "slug": "cve-2026-44470-claude-desktop-coworkvmservice-file-creation",
 "title": "CVE-2026-44470: Claude Desktop CoworkVMService File Creation Vulnerability",
 "summary": "The Claude Desktop app for Windows prior to version 1.3834.0 contained a vulnerability where the CoworkVMService did not validate VM bundle directories before creating files. Local users could leverage directory junctions to cause the SYSTEM-owned service to write arbitrary files.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "Anthropic",
  "framework_or_tooling"
 ],
 "products": [
  "Claude Desktop",
  "Claude Code"
 ],
 "incident_date": "2026-05-13",
 "incident_date_precision": "day",
 "first_reported": "2026-05-13",
 "sources": [
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44470",
   "publisher": "NVD",
   "title": "CVE-2026-44470: The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side.",
   "published_at": "2026-05-13"
  }
 ],
 "source_count": 1,
 "confidence": 0.9,
 "status": "published",
 "origin": "seed_nvd",
 "tags": [
  "CVE-2026-44470",
  "local-privilege-escalation",
  "claude-desktop"
 ],
 "created_at": "2026-10-18T10:04:21.885Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}