mcp-server-playground

Item: mcp-server-playground
Rating: 58
Author: M8ven

A playground for Model Context Protocol (MCP) server built with TypeScript and Streamable HTTP transport with an OAuth Proxy for 3rd party authorization servers like Auth0

→ chrisleekr/mcp-server-playground · listed on github_topic

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GitHub

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// key findings

⚠️

Known vulnerabilities in dependencies: 11 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 dependencies11 high13 low

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

highaxios@1.14.0GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

highaxios@1.14.0GHSA-3g43-6gmg-66jw

axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge

highaxios@1.14.0GHSA-6chq-wfr3-2hj9

Axios: Header Injection via Prototype Pollution

highaxios@1.14.0GHSA-777c-7fjr-54vf

Allocation of Resources Without Limits or Throttling in Axios

highaxios@1.14.0GHSA-hfxv-24rg-xrqf

Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

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

configAPP_ENV

configGITHUB_SHA

configMCP_LOG_LEVEL

// 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/chrisleekr-mcp-server-playground-1lmv6g)](https://m8ven.ai/mcp/chrisleekr-mcp-server-playground-1lmv6g)

commit: a5f890cb67697f42042d4b0b675d6dc3d3062432

code hash: 155c9c31f3178b6639ddb5cbcc0339b6f9edd6cf2189904a218eafed6b1d3a83

verified: 6/14/2026, 10:48:03 AM

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