{
 "id": "AIR-2026-0436",
 "slug": "cve-2026-21852-claude-code-data-leak-via-malicious-config",
 "title": "CVE-2026-21852: Claude Code Data Leak via Malicious Config",
 "summary": "A vulnerability in Claude Code allowed malicious repositories to exfiltrate data and API keys before trust confirmation. A patch has been issued via auto-updates.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln",
  "data_leak"
 ],
 "severity": 2,
 "targets": [
  "Anthropic",
  "framework_or_tooling"
 ],
 "products": [
  "Claude Code"
 ],
 "incident_date": "2026-01-21",
 "incident_date_precision": "day",
 "first_reported": "2026-01-21",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-jh7p-qr78-84p7",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-21852: Claude Code Leaks Data via Malicious Environment Configuration Before Trust Confirmation",
   "published_at": "2026-01-21"
  },
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21852",
   "publisher": "NVD",
   "title": "CVE-2026-21852: Claude Code is an agentic coding tool.",
   "published_at": "2026-01-21"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2026-21852",
  "data-leak",
  "infra_vuln"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}