Langflow OS Command Injection via MCP Stdio Server Configuration

# Langflow OS Command Injection via MCP Stdio Server Configuration

https://gcdradar.vercel.app/incidents/langflow-os-command-injection-via-mcp-stdio-server-configura · AIR-2026-0244 · closed 2026-10-05

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-10-05
- AI role: Attack on AI
- Products: Langflow
- CVE ids: CVE-2026-105697
- CVSS: 9.9

## Summary

Langflow permitted users to specify arbitrary operating system commands inside MCP server configurations without validation. The flaw allows remote code execution and has been addressed in version 1.10.3.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-10-07: CVE-2026-105697: Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration (https://github.com/advisories/GHSA-w794-rj3p-xv45)
- 2026-10-05: CVE-2026-105697: Langflow is a tool for building and deploying AI-powered agents and workflows. (https://nvd.nist.gov/vuln/detail/CVE-2026-105697)

## Sources

- 2026-10-05 NVD: CVE-2026-105697: Langflow is a tool for building and deploying AI-powered agents and workflows. https://nvd.nist.gov/vuln/detail/CVE-2026-105697
- 2026-10-07 GitHub Advisory Database: CVE-2026-105697: Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration https://github.com/advisories/GHSA-w794-rj3p-xv45

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.