Maester MCP Server

Item: Maester MCP Server
Rating: 62
Author: M8ven

Exposes the Maester security test framework for Microsoft 365/Entra/Defender as MCP tools, enabling AI agents to run tests, audit AI agents and MCP servers, and investigate security posture.

→ iffystrayer/maester-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.

✅

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 1 credential: AZURE_CLIENT_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@1.10.2GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.10.2GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.10.2GHSA-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.

configAZURE_CLIENT_ID— Yes App registration client ID

🔐 secretAZURE_CLIENT_SECRET— Yes App registration client secret

configAZURE_TENANT_ID— Yes Entra tenant ID

configAZURE_USE_MANAGED_IDENTITY— Set =true. Grant the managed identity the same Graph permissions.

configMAESTER_DRIFT_ROOT— No Baseline folder for -DriftRoot drift detection

configMAESTER_PWSH— No PowerShell executable (default pwsh)

configMAESTER_RESULTS_PATH— No Where result JSON/MD/HTML files are written

configMAESTER_TESTS_PATH— No Tests folder (default ~/maester-tests)

// 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 2 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/iffystrayer-maester-mcp-server-ifcgg8)](https://m8ven.ai/mcp/iffystrayer-maester-mcp-server-ifcgg8)

commit: cebbaf26cd165a87043544fb15acc89e502a76ff

code hash: e2a0fa6552509b8a685a3a4c3a08d8cea02b14576b885794bd7dc456f618e0cc

verified: 7/30/2026, 9:09:12 AM

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