Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and before 1.10.3 wrapped in bash -c "exec command ...". Any user able to reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

GHSA-W794-RJ3P-XV45 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and before 1.10.3 wrapped in bash -c "exec command ...". Any user able to reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

CVE-2025-59528-PoC

CVE-2025-59528 PoC Prueba de concepto para investigar CVE-2025-59528 en un entorno de laboratorio aislado. !WARNING DESCARGO DE RESPONSABILIDAD Este proyecto está destinado estrictamente a fines educativos, investigación de seguridad y pruebas de sistemas que usted posee o para los que cuenta con...

CVE-2025-59528-PoC

PoC educativo CVE-2025-59528 Solo uso educativo. Este proyecto está destinado a investigación de seguridad controlada, demostraciones en clase y pruebas autorizadas en un laboratorio aislado. No lo utilices contra sistemas, redes, aplicaciones o cuentas que no poseas o para las que no tengas...

CVE-2025-58434-59528-htb-ctf

CVE-2025-58434-59528-htb-ctf Silentium 利用链 本仓库包含针对 Hack The Box 中 Silentium 机器的完整利用链。该漏洞利用分两个阶段：用户枚举和 JavaScript 注入，以实现 远程代码执行（RCE） 。 📝 描述 该漏洞链包含一个信息泄露缺陷和一个关键代码注入。首先通过密码重置漏洞枚举有效用户，从而获得攻击 customMCP 端点所需的上下文信息。RCE 是通过将恶意 JavaScript 函数注入到 mcpServerConfig 参数中实现的，该函数由 Node.js 后端执行。 🛠️ 功能 用户枚举...

Exploit for Code Injection in Flowiseai Flowise

CVE-2025-59528 — Flowise AI Account Takeover to RCE !Python...

CVE-2026-91931

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code ...

CVE-2026-91931 Flowise before 3.1.4 Remote Code Execution via Custom MCP npx

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code ...

CVE-2026-91931

Flowise before 3.1.4 is affected by a remote code execution vulnerability in the Custom MCP node . An authenticated attacker can supply attacker-controlled npx package names in the mcpServerConfig parameter, causing the server to execute arbitrary code via npx invocation of a malicious npm packag...

CVE-2026-91931 Flowise before 3.1.4 Remote Code Execution via Custom MCP npx

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code ...

EUVD-2026-78789

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code ...

PT-2026-92051

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.4 Description An issue in the Custom MCP node allows authenticated attackers to achieve remote code execution. By supplying malicious npx package names through the mcpServerConfig parameter, an attacker can force...

CVE-2026-91931: Improper Neutralization of Special Elements used in an OS Command

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code ...