{
 "id": "AIR-2026-0358",
 "slug": "model-namespace-reuse-ai-supply-chain-attack",
 "title": "Model Namespace Reuse AI Supply Chain Attack",
 "summary": "Researchers demonstrated an AI supply chain threat where deleted or transferred author namespaces on Hugging Face are reclaimed. Unpinned model references risk resolving to adversary-controlled artifacts instead of trusted models.",
 "type": "attack_on_ai",
 "categories": [
  "supply_chain"
 ],
 "severity": 1,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Hugging Face"
 ],
 "incident_date": "2025-09-03",
 "incident_date_precision": "day",
 "first_reported": "2026-07-31",
 "sources": [
  {
   "url": "https://atlas.mitre.org/studies/AML.CS0065",
   "publisher": "MITRE ATLAS",
   "title": "Model Namespace Reuse Supply Chain Attack",
   "published_at": "2026-07-31"
  },
  {
   "url": "https://unit42.paloaltonetworks.com/model-namespace-reuse",
   "publisher": "Unit 42",
   "title": "Model Namespace Reuse: An AI Supply-Chain Attack Exploiting Model Name Trust",
   "published_at": "2026-07-31"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_atlas",
 "tags": [
  "supply-chain",
  "hugging-face",
  "namespace-reuse"
 ],
 "created_at": "2026-10-18T06:55:08.239Z",
 "updated_at": "2026-10-18T06:55:08.239Z"
}