{
 "id": "AIR-2026-0317",
 "slug": "cve-2026-86063-claude-code-plugin-installation-flow-hash-pin",
 "title": "CVE-2026-86063: Claude Code plugin installation flow hash pin bypass vulnerability",
 "summary": "Claude Code prior to version 2.1.179 runs git checkout for marketplace-pinned commits without verifying the resulting HEAD hash. Attackers can create branch names matching reviewed commits to install unauthorized attacker-controlled plugin code.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln",
  "supply_chain"
 ],
 "severity": 2,
 "targets": [
  "Anthropic",
  "framework_or_tooling"
 ],
 "products": [
  "Claude Code"
 ],
 "incident_date": "2026-10-13",
 "incident_date_precision": "day",
 "first_reported": "2026-10-13",
 "sources": [
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86063",
   "publisher": "NVD",
   "title": "CVE-2026-86063: Claude Code is an agentic coding tool.",
   "published_at": "2026-10-13"
  },
  {
   "url": "https://github.com/advisories/GHSA-pq7j-f95f-qfcv",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-86063: Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning",
   "published_at": "2026-10-15"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_nvd",
 "tags": [
  "CVE-2026-86063",
  "claude-code",
  "hash-pinning"
 ],
 "created_at": "2026-10-18T06:33:31.967Z",
 "updated_at": "2026-10-18T06:33:31.967Z"
}