{
 "id": "AIR-2025-0284",
 "slug": "cve-2025-2099-hugging-face-transformers-regular-expression-d",
 "title": "CVE-2025-2099: Hugging Face Transformers Regular Expression Denial of Service",
 "summary": "A regular expression denial of service vulnerability exists in the preprocessing utility of Hugging Face Transformers before version 4.50.0. Specially crafted inputs can trigger catastrophic backtracking, degrading system availability.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Transformers"
 ],
 "incident_date": "2025-05-19",
 "incident_date_precision": "day",
 "first_reported": "2025-05-19",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-qq3j-4f4f-9583",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2025-2099: Hugging Face Transformers Regular Expression Denial of Service",
   "published_at": "2025-05-19"
  }
 ],
 "source_count": 1,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2025-2099",
  "redos",
  "huggingface"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T07:00:14.101Z"
}