{
 "id": "AIR-2026-0223",
 "slug": "cve-2026-51883-path-traversal-vulnerability-in-langchain-cha",
 "title": "CVE-2026-51883: Path traversal vulnerability in Langchain-Chatchat",
 "summary": "Langchain-Chatchat is vulnerable to path traversal via the knowledge base creation interface, allowing attackers to write files outside the target directory. The vulnerability has been documented with a high severity score.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Langchain-Chatchat"
 ],
 "incident_date": "2026-10-01",
 "incident_date_precision": "day",
 "first_reported": "2026-10-01",
 "sources": [
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-51883",
   "publisher": "NVD",
   "title": "CVE-2026-51883: The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal.",
   "published_at": "2026-10-01"
  }
 ],
 "source_count": 1,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_nvd",
 "tags": [
  "CVE-2026-51883",
  "path-traversal",
  "langchain-chatchat"
 ],
 "created_at": "2026-10-18T06:33:31.967Z",
 "updated_at": "2026-10-18T06:33:31.967Z"
}