mattermost-mcp

MCP server for Mattermost that enables AI assistants to read posts, search messages, send messages, and manage channels.

→ anton-sobolev-zhr/mattermost-mcp · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 2 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 2 credentials: MATTERMOST_ACCESS_TOKEN, MATTERMOST_TOKEN

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

// known CVEs in dependencies2 high1 low

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

high@modelcontextprotocol/sdk@1.0.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

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

lowzod@3.22.0GHSA-m95q-7qp3-xv42

Zod denial of service vulnerability

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.

🔐 secretMATTERMOST_ACCESS_TOKEN

configMATTERMOST_KEEPALIVE_MS— "": "86400000"

🔐 secretMATTERMOST_TOKEN— your-token \

configMATTERMOST_URL— "": "https://mattermost.company.com",

// 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/anton-sobolev-zhr-mattermost-mcp-1e6ib3)](https://m8ven.ai/mcp/anton-sobolev-zhr-mattermost-mcp-1e6ib3)

commit: ecc0d8a7e898cb5d492760700dfd8a87174c5868

code hash: c2bc7e1c71510d0aab7a6d9519dced46a584cf1bd5b97f27be8f0f88eaed6438

verified: 6/23/2026, 10:18:52 AM

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