{
 "id": "AIR-2026-1227",
 "slug": "cve-2026-12940-ibm-langflow-oss-rce-via-environment-variable",
 "title": "CVE-2026-12940: IBM Langflow OSS RCE via Environment Variable Injection",
 "summary": "IBM Langflow OSS is vulnerable to unauthenticated remote code execution via environment variable injection in the MCP stdio launcher. The flaw stems from an incomplete blocklist of dangerous environment variables.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Langflow OSS"
 ],
 "incident_date": "2026-07-30",
 "incident_date_precision": "day",
 "first_reported": "2026-07-30",
 "sources": [
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12940",
   "publisher": "NVD",
   "title": "CVE-2026-12940: IBM Langflow OSS 1.0.0 through 1.10.1  are vulnerable to unauthenticated remote code execution via environment variable injection…",
   "published_at": "2026-07-30"
  }
 ],
 "source_count": 1,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_nvd",
 "tags": [
  "CVE-2026-12940",
  "rce",
  "mcp",
  "langflow"
 ],
 "created_at": "2026-10-18T10:04:21.885Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}