custom-mcp-server

Item: custom-mcp-server
Rating: 62
Author: M8ven

Production MCP server for data annotation workflows, exposing six tools backed by AWS S3, DynamoDB, and Slack with JWT auth, rate limiting, and exponential-backoff retries.

→ satyamsh04/custom-mcp-server · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 3 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 1 credential: JWT_SECRET

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

// known CVEs in dependencies3 high

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

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

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

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.

configJWKS_URI— auth (RS256) JWKS endpoint for signature verification

🔐 secretJWT_SECRET— auth (HS256, dev only) optional; ≥ 32 chars; refused when NODE_ENV=production

configLOG_LEVEL— logger debug/info/warn/error, default info

configOAUTH_AUDIENCE— auth (every call) expected aud claim

configOAUTH_ISSUER— auth (every call) expected iss claim

// 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/satyamsh04-custom-mcp-server-1bcxcn)](https://m8ven.ai/mcp/satyamsh04-custom-mcp-server-1bcxcn)

commit: 6a5db86dd3b00cef8a60a1e3d57b10c560f095f1

code hash: 1fa92ecf22588384824aba3cb8c59bc07a3c8d3b812c62b253a12ec502e9ceeb

verified: 6/25/2026, 9:56:37 AM

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