CVE-2026-105740

{
  "etk_id": "ETK-2026-680",
  "cve_id": "CVE-2026-105740",
  "display_id": "CVE-2026-105740",
  "ghsa_id": "GHSA-7w94-79vh-5mr2",
  "euvd_id": "EUVD-2026-92799",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authenticated command injection in Langflow MCP Stdio support",
  "summary": "Langflow versions before 1.9.0 can allow an authenticated user to cause execution of attacker-chosen commands on the Langflow server through an MCP server using the Stdio transport. Exploitation requires a valid Langflow account and access to that transport option; attacker-controlled environment settings can also affect launched processes.",
  "mitigation": "Upgrade Langflow to version 1.9.0 or later. Until upgraded, restrict account access and disable or limit use of MCP Stdio servers where possible.",
  "vendor": "langflow-ai",
  "product": "Langflow",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "1.8.3"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "1.9.0"
      ],
      "package_name": "langflow",
      "purl": "pkg:pypi/langflow"
    }
  ],
  "cwes": [
    78
  ],
  "cvss_score": 9.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": 0.0059,
  "epss_percentile": 0.4719,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 18.612217016666666,
  "t0_at": "2026-10-05T20:46:18.854000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-05T22:01:39.256252+00:00",
      "days": 0.05231947050925926,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T20:46:18.854000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-10-12T00:00:00+00:00",
      "days": 7,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T20:46:18.854000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-105740"
    },
    "public_poc": {
      "at": "2026-09-10T15:38:54+00:00",
      "days": -25.213482106481482,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T20:46:18.854000+00:00",
      "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-7w94-79vh-5mr2"
    },
    "trigger_signal": {
      "at": "2026-10-05T20:46:18.854000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T20:46:18.854000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-105740"
    }
  }
}