{
 "id": "AIR-2024-0080",
 "slug": "cve-2024-1455-langchain-xmloutputparser-vulnerable-to-xxe",
 "title": "CVE-2024-1455: LangChain XMLOutputParser vulnerable to XXE",
 "summary": "LangChain's XMLOutputParser used standard library XML parsers vulnerable to XML entity expansion. Attackers could manipulate model outputs to compromise service availability.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "langchain"
 ],
 "incident_date": "2024-03-26",
 "incident_date_precision": "day",
 "first_reported": "2024-03-26",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-q84m-rmw3-4382",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2024-1455: LangChain's XMLOutputParser vulnerable to XML Entity Expansion",
   "published_at": "2024-03-26"
  },
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1455",
   "publisher": "NVD",
   "title": "CVE-2024-1455: A vulnerability in the langchain-ai/langchain repository allows for a Billion Laughs Attack, a type of XML External Entity (XXE)…",
   "published_at": "2024-03-26"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2024-1455",
  "xxe",
  "langchain"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}