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MetaMask/client-mcp-core

MCP server for MetaMask Extension visual testing with LLM agents

→ MetaMask/client-mcp-core· npm: @metamask/client-mcp-core· listed on npm
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// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// known CVEs in dependencies1 critical3 high2 medium

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

criticalvitest@3.0.7GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

highplaywright@1.49.0GHSA-7mvr-c777-76hp

Playwright downloads and installs browsers without verifying the authenticity of the SSL certificate

highvite@6.4.1GHSA-fx2h-pf6j-xcff

vite: `server.fs.deny` bypass on Windows alternate paths

highvite@6.4.1GHSA-p9ff-h696-f583

Vite Vulnerable to Arbitrary File Read via Vite Dev Server WebSocket

mediumvite@6.4.1GHSA-4w7w-66w2-5vf9

Vite Vulnerable to Path Traversal in Optimized Deps `.map` Handling

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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.
configMM_PROJECT— The global CLI can target any project via --project or (see [Project Targeting](#project-targeting)).
configVITEST
// 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/metamask-client-mcp-core-czi8zq)](https://m8ven.ai/mcp/metamask-client-mcp-core-czi8zq)
commit: edb5870eb03dac159c484d97d6ba970e4210328f
code hash: 298c585ec34ca85be988f41e92f18fbf4352d9bd5f4c28fa80f106ab2165781d
verified: 6/16/2026, 12:16:08 PM
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