{
 "id": "AIR-2026-0489",
 "slug": "cve-2026-28277-langgraph-unsafe-msgpack-checkpoint-deseriali",
 "title": "CVE-2026-28277: LangGraph Unsafe Msgpack Checkpoint Deserialization",
 "summary": "LangGraph checkpointers use msgpack in a way that allows arbitrary Python object reconstruction during deserialization. Exploitation requires prior persistence layer compromise to inject crafted checkpoint data.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "LangGraph"
 ],
 "incident_date": "2026-03-05",
 "incident_date_precision": "day",
 "first_reported": "2026-03-05",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-g48c-2wqr-h844",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-28277: LangGraph checkpoint loading has unsafe msgpack deserialization",
   "published_at": "2026-03-05"
  }
 ],
 "source_count": 1,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2026-28277",
  "deserialization",
  "langgraph"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T07:00:14.101Z"
}