M365 MCP Server

Item: M365 MCP Server
Rating: 52
Author: M8ven

A secure remote MCP server that integrates Microsoft 365 services with AI assistants, enabling email, calendar, Teams, and contact operations via the Microsoft Graph API.

→ nikolanovoselec/m365-mcp-server · listed on glama

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// key findings

🚨

Known vulnerabilities in dependencies: 1 critical, 10 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

// known CVEs in dependencies1 critical10 high3 medium18 low

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

criticalvitest@3.2.4GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.17.4GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.17.4GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.17.4GHSA-w48q-cv73-mx4w

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

highhono@4.9.5GHSA-3vhc-576x-3qv4

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

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// 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 7 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/nikolanovoselec-m365-mcp-server-93lv2w)](https://m8ven.ai/mcp/nikolanovoselec-m365-mcp-server-93lv2w)

commit: 9d5f4d8c13d68a22768e5ce9a4a224c3bf0aac28

code hash: 068404a45c2fdd83b471ac9ae32b1c52f8e92ff2ceed69ff151fbba694642865

verified: 6/21/2026, 10:15:57 AM

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