next-devtools-mcp✓ Official

Next.js development tools MCP server with stdio transport

→ vercel/next-devtools-mcp· npm: next-devtools-mcp· listed on npm

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// key findings

🚨

Known vulnerabilities in dependencies: 1 critical, 4 high

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

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

// known CVEs in dependencies1 critical4 high3 low

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

criticalvitest@3.2.4GHSA-5xrq-8626-4rwp

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

high@modelcontextprotocol/sdk@1.25.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

highundici@7.18.2GHSA-f269-vfmq-vjvj

Undici: Malicious WebSocket 64-bit length overflows parser and crashes the client

highundici@7.18.2GHSA-v9p9-hfj2-hcw8

Undici has Unhandled Exception in WebSocket Client Due to Invalid server_max_window_bits Validation

highundici@7.18.2GHSA-vrm6-8vpv-qv8q

Undici has Unbounded Memory Consumption in WebSocket permessage-deflate Decompression

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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.

configNEXT_DEVTOOLS_HOST

configNEXT_TELEMETRY_DISABLED

// 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 4 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/npm-https-github-com-vercel-next-devtools-mcp)](https://m8ven.ai/mcp/npm-https-github-com-vercel-next-devtools-mcp)

commit: c7d8f459700b07e9d665933b80bb84ce629e0ed0

code hash: 3c8fcfc2ec4fd159c421b94ca4fb924e3f6a548401fad6c49736bf4bb42474ec

verified: 6/16/2026, 12:00:36 PM

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