CVE-2026-34163

FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, FastGPT's MCP (Model Context Protocol) tools endpoints (/api/core/app/mcpTools/getTools and /api/core/app/mcpTools/runTool) accept a user-supplied URL parameter and make server-side HTTP requests to it without validating whether the URL points to an internal/private network address. Although the application has a dedicated isInternalAddress() function for SSRF protection (used in other endpoints like the HTTP workflow node), the MCP tools endpoints do not call this function. An authenticated attacker can use these endpoints to scan internal networks, access cloud metadata services, and interact with internal services such as MongoDB and Redis. This issue has been patched in version 4.14.9.5.
Configurations

Configuration 1 (hide)

cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*

History

24 Jul 2026, 21:10

Type Values Removed Values Added
Summary
  • (es) FastGPT es una plataforma de creación de agentes de IA. Antes de la versión 4.14.9.5, los endpoints de herramientas MCP (Model Context Protocol) de FastGPT (/api/core/app/mcpTools/getTools y /api/core/app/mcpTools/runTool) aceptan un parámetro URL proporcionado por el usuario y realizan solicitudes HTTP del lado del servidor a este sin validar si la URL apunta a una dirección de red interna/privada. Aunque la aplicación tiene una función isInternalAddress() dedicada para la protección SSRF (utilizada en otros endpoints como el nodo de flujo de trabajo HTTP), los endpoints de herramientas MCP no llaman a esta función. Un atacante autenticado puede usar estos endpoints para escanear redes internas, acceder a servicios de metadatos en la nube e interactuar con servicios internos como MongoDB y Redis. Este problema ha sido parcheado en la versión 4.14.9.5.

01 Apr 2026, 18:28

Type Values Removed Values Added
CPE cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*
First Time Fastgpt
Fastgpt fastgpt
References () https://github.com/labring/FastGPT/commit/bc7eae2ed61481a5e322208829be291faec58c00 - () https://github.com/labring/FastGPT/commit/bc7eae2ed61481a5e322208829be291faec58c00 - Patch
References () https://github.com/labring/FastGPT/pull/6640 - () https://github.com/labring/FastGPT/pull/6640 - Issue Tracking, Patch
References () https://github.com/labring/FastGPT/releases/tag/v4.14.9.5 - () https://github.com/labring/FastGPT/releases/tag/v4.14.9.5 - Product, Release Notes
References () https://github.com/labring/FastGPT/security/advisories/GHSA-x9vj-5m4j-9mfv - () https://github.com/labring/FastGPT/security/advisories/GHSA-x9vj-5m4j-9mfv - Exploit, Mitigation, Vendor Advisory

31 Mar 2026, 15:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-31 15:16

Updated : 2026-07-24 21:10


NVD link : CVE-2026-34163

Mitre link : CVE-2026-34163

CVE.ORG link : CVE-2026-34163


JSON object : View

Products Affected

fastgpt

  • fastgpt
CWE
CWE-918

Server-Side Request Forgery (SSRF)