{
 "id": "AIR-2026-1264",
 "slug": "cve-2026-67531-frontmcp-sandbox-escape-leading-to-rce",
 "title": "CVE-2026-67531: FrontMCP Sandbox Escape Leading to RCE",
 "summary": "A sandbox escape vulnerability in FrontMCP enables scripts to leverage Proxy invariants and access the host Function constructor. This allows remote code execution in the server process via tool calls.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "FrontMCP"
 ],
 "incident_date": "2026-08-06",
 "incident_date_precision": "day",
 "first_reported": "2026-08-06",
 "sources": [
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67531",
   "publisher": "NVD",
   "title": "CVE-2026-67531: FrontMCP is a TypeScript-first framework for the Model Context Protocol (MCP).",
   "published_at": "2026-08-06"
  }
 ],
 "source_count": 1,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_nvd",
 "tags": [
  "CVE-2026-67531",
  "sandbox-escape",
  "mcp",
  "rce"
 ],
 "created_at": "2026-10-18T10:04:21.885Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}