gmail-mcp-server

A comprehensive MCP server for Gmail, providing 17 tools to read, send, search, and manage emails with OAuth2 authentication, including attachment handling and privacy features.

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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.

🔐

You'll be asked for 2 credentials: GMAIL_CLIENT_SECRET, GMAIL_REFRESH_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies2 high2 low

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

high@modelcontextprotocol/sdk@1.0.4GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.4GHSA-w48q-cv73-mx4w

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

lowexpress@4.18.3GHSA-qw6h-vgh9-j6wx

express vulnerable to XSS via response.redirect()

lowexpress@4.18.3GHSA-rv95-896h-c2vc

Express.js Open Redirect in malformed URLs

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.

configGMAIL_CLIENT_ID— Edit .env: set , GMAIL_CLIENT_SECRET, GMAIL_REFRESH_TOKEN

🔐 secretGMAIL_CLIENT_SECRET— Edit .env: set GMAIL_CLIENT_ID, , GMAIL_REFRESH_TOKEN

configGMAIL_REDIRECT_URI— No Override redirect URI (default: http://localhost:3000/oauth/callback)

🔐 secretGMAIL_REFRESH_TOKEN— Edit .env: set GMAIL_CLIENT_ID, GMAIL_CLIENT_SECRET,

configPORT— No Web UI setup server port (default: 3000)

configREDIS_URL

configVLLM_BASE_URL

configVLLM_MODEL

configUSE_CREWAI_SWARM

configSHELL

// 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/enoch-sit-gmail-mcp-server-1e4x79)](https://m8ven.ai/mcp/enoch-sit-gmail-mcp-server-1e4x79)

commit: 4fcf08e3f1b709e6f7d2d42886f0f93efdd8c5e6

code hash: 0fca6ceb777ecbf421a004ced85ac7dfc91ba1f85906f6f4ff2ae33d827257ec

verified: 6/21/2026, 10:21:30 AM

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