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CedricG-dev

VulnerabilityMCPServer

by CedricG-dev
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Python
Local

VulnerabilityMCPServer

Test d'un serveur MCP local sur le protocol HTTP, avec un mode d'exposition alternatif en API REST/JSON classique.

Prerequisites

A python version 3.9+ should be installed

NPM should be installed (using NodeJS installation)

Related MCP server: CIRCL CVE SEARCH MCP Server

Set up environment

  1. Clone the Github repo

  2. Create a virtual environment linked to the project

python -m venv <PATH_TO_YOU_VENV_FOLDER>\VulnerabilityMCPServer

  1. Start the virtual environment

<PATH_TO_YOU_VENV_FOLDER>\Scripts\Activate.ps1

Use other script based on your environment type (activate / activate.bat)

  1. Install python packages

pip install -e .

This installs every dependency needed to run the server (either mode) and registers the two CLI commands used below, vuln-db and vuln-server, from the single pyproject.toml manifest.

  1. Build the local vulnerability database

The server reads from a local SQLite database (data/vulnerability.db, git-ignored) that must be built before first use, with the vuln-db CLI:

vuln-db --init

See docs/vuln-db.md for the full CLI reference (flags, environment variables, offline/LOCAL fetch mode, examples).

  1. Launch the server

The vulnerability data can be exposed either over the MCP protocol or as a plain REST/JSON API, chosen at startup with the vuln-server CLI:

vuln-server --mode mcp     # MCP protocol, streamable-http, port 8001
vuln-server --mode rest    # REST/JSON API, port 8080

See docs/vuln-server.md for the full CLI reference: configuration (JSON config file per mode, overridable by CLI flags), available MCP tools / REST routes, and how to test each mode (MCP Inspector / Swagger UI).

Run OpenCode

Now you can run OpenCode in a third terminal. 

opencode

you get

OPENCODE

use the command /mcps to list mcp servers

OPENCODE MCP

Now test the following prompt


get info about vulnerability with id  CVE-2025-53770 and trace if you used a mcp server and a tool in your response

We get the following response with local LLM qwen3.6:latest

RESPONSE QWEN

We get the following response with remote Claude Sonnet 5

RESPONS SONNET

This server cannot be installed

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Maintenance

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Resources

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Looking for Admin?

If you are the server author, to access and configure the admin panel.

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