mcp-pyodide

Item: mcp-pyodide
Rating: 69
Author: M8ven

A Pyodide server implementation for the Model Context Protocol (MCP).

→ yonaka15/mcp-pyodide · listed on mcp_so

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// key findings

⚠️

Known vulnerabilities in dependencies: 2 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// known CVEs in dependencies2 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.4.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.4.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

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// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configPYODIDE_CACHE_DIR— Directory for Pyodide cache (default: "./cache")

configPYODIDE_DATA_DIR— Directory for mounted data (default: "./data")

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/yonaka15-mcp-pyodide-13h41h)](https://m8ven.ai/mcp/yonaka15-mcp-pyodide-13h41h)

commit: afbb5bd5f2d3568ef2eba6d820a0613482e3f6be

code hash: 656a2a5f6b4788175a51914521ff2f307776c15ef195ea4d6cf90a5abee5270a

verified: 6/16/2026, 12:25:04 PM

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