mcp-guardian

Item: mcp-guardian
Rating: 74
Author: M8ven

Scans MCP tool descriptions for prompt injection attacks, including cross-tool instructions, privilege escalation, and data exfiltration patterns. It can be used as a CLI scanner or integrated as an MCP server itself.

→ alexandriashai/mcp-guardian · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 1 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.

// known CVEs in dependencies1 high

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

high@modelcontextprotocol/sdk@1.25.3GHSA-345p-7cg4-v4c7

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

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.

configMCP_GUARDIAN_DATA_DIR

// 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 5 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/alexandriashai-mcp-guardian-1tga9h)](https://m8ven.ai/mcp/alexandriashai-mcp-guardian-1tga9h)

commit: 012c0610f49995cb15dbf0fb20ece21af6583efc

code hash: 8a6cf84f7b764bd31a733597967328e6ad2a98e1d65ded9aac95297cc9db9970

verified: 6/21/2026, 10:33:36 AM

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