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mcp_so

Google Calendar MCP Server

Google Calendar MCP server for Claude Desktop integration

→ takumi0706/google-calendar-mcp· listed on mcp_so
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// key findings
⚠️
Known vulnerabilities in dependencies: 7 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.
🔐
You'll be asked for 2 credentials: GOOGLE_CLIENT_SECRET, TOKEN_ENCRYPTION_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies7 high23 low

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

high@modelcontextprotocol/sdk@1.8.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.8.0GHSA-w48q-cv73-mx4w

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

highhono@4.6.3GHSA-3vhc-576x-3qv4

Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)

highhono@4.6.3GHSA-88fw-hqm2-52qc

hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard

highhono@4.6.3GHSA-f67f-6cw9-8mq4

Hono JWT Middleware's JWT Algorithm Confusion via Unsafe Default (HS256) Allows Token Forgery and Auth Bypass

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.
configAUTH_HOST
configAUTH_PORT
configGOOGLE_CLIENT_ID— your_client_id
🔐 secretGOOGLE_CLIENT_SECRET— your_client_secret
configGOOGLE_REDIRECT_URI— "": "http://localhost:4153/oauth2callback"
configHOST
configLOG_COLORS
configLOG_FORMAT
configLOG_LEVEL
configLOG_STACK_TRACE
configLOG_TIMESTAMPS
configPORT
configREDACT_SENSITIVE_DATA
configSANITIZE_LOGS
🔐 secretTOKEN_ENCRYPTION_KEY— 32-byte-hex-key
configUSE_MANUAL_AUTH— Add the server to your claude_desktop_config.json. If you're running in an environment where localhost is not accessible, add the environment variable set to "true".
// 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 3 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/takumi0706-google-calendar-mcp-bed7t8)](https://m8ven.ai/mcp/takumi0706-google-calendar-mcp-bed7t8)
commit: a6c4696c08bb65b6618b664dbde10869b53397f6
code hash: fde98ac1d94b8bbe1cf1d10d199d72d3f9eb75b544728a50ef7a09690b10c57a
verified: 6/17/2026, 11:51:46 AM
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