teams-mcp

Item: teams-mcp
Rating: 59
Author: M8ven

MCP server providing comprehensive Microsoft Teams and Graph API access for AI assistants including messaging, search, and user management.

→ floriscornel/teams-mcp · listed on github_topic

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Install from

GitHub npm

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// key findings

⚠️

Tool annotations don’t match behaviour

2 read-only tools perform write/delete/exec — download_chat_hosted_content (line 394: hostedContentRegex.exec(bodyContent)); download_message_hosted_content (line 1066: hostedContentRegex.exec(bodyContent))

⚠️

Tool descriptions don’t match what handlers do

2 tools describe read intent but their handlers mutate — download_chat_hosted_content (line 394: hostedContentRegex.exec(bodyContent)); download_message_hosted_content (line 1066: hostedContentRegex.exec(bodyContent))

✅

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: AUTH_TOKEN

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

// known CVEs in dependencies2 medium2 low

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

mediumdompurify@3.3.3GHSA-39q2-94rc-95cp

DOMPurify's ADD_TAGS function form bypasses FORBID_TAGS due to short-circuit evaluation

mediumdompurify@3.3.3GHSA-h7mw-gpvr-xq4m

DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS predicate (asymmetry with FORBID_ATTR fix)

lowdompurify@3.3.3GHSA-crv5-9vww-q3g8

DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode

lowdompurify@3.3.3GHSA-v9jr-rg53-9pgp

DOMPurify: Prototype Pollution to XSS Bypass via CUSTOM_ELEMENT_HANDLING Fallback

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// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretAUTH_TOKEN— Direct support for pre-issued Microsoft Graph access tokens

configTEAMS_MCP_READ_ONLY— Read-only mode (=true) — only these scopes are requested:

// 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 6 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/floriscornel-teams-mcp-1f7o7y)](https://m8ven.ai/mcp/floriscornel-teams-mcp-1f7o7y)

commit: e635dbfcf64dcebb62ffc64e4d56d6c83f779791

code hash: f4dca424e4c855589af426ef69f655f4848b5596ad43dfe98c4d2f76dea9b883

verified: 6/14/2026, 10:56:45 AM

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