{
 "id": "AIR-2025-0377",
 "slug": "cve-2025-64755-anthropic-claude-code-sed-command-validation",
 "title": "CVE-2025-64755: Anthropic Claude Code Sed Command Validation Bypass",
 "summary": "An error in sed command parsing within Claude Code allowed attackers to bypass read-only validation and write arbitrary files. A fix was deployed to users via auto-updates.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "Anthropic",
  "framework_or_tooling"
 ],
 "products": [
  "Claude Code"
 ],
 "incident_date": "2025-11-20",
 "incident_date_precision": "day",
 "first_reported": "2025-11-20",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-7mv8-j34q-vp7q",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2025-64755: @anthropic-ai/claude-code has Sed Command Validation Bypass that Allows Arbitrary File Writes",
   "published_at": "2025-11-20"
  },
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64755",
   "publisher": "NVD",
   "title": "CVE-2025-64755: Claude Code is an agentic coding tool.",
   "published_at": "2025-11-21"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2025-64755",
  "arbitrary-file-write",
  "claude-code"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}