agent-mailbox-mcp

MCP server for multi-agent AI systems providing mailbox messaging, A2A task delegation, resource coordination, and a web dashboard.

→ lleontor705/agent-mailbox-mcp · listed on glama

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// key findings

🚨

Known vulnerabilities in dependencies: 2 critical

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

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

🔐

You'll be asked for 2 credentials: MAILBOX_AUTH_SECRET, MAILBOX_ENCRYPTION_KEY

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

// known CVEs in dependencies2 critical

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

criticalvitest@3.0.0GHSA-5xrq-8626-4rwp

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

criticalvitest@3.0.0GHSA-9crc-q9x8-hgqq

Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

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.

🔐 secretMAILBOX_AUTH_SECRET— JWT signing secret (empty = auth disabled)

configMAILBOX_DB— ~/.agent-mailbox/mailbox.db Full database path

configMAILBOX_DIR— ~/.agent-mailbox Database directory

🔐 secretMAILBOX_ENCRYPTION_KEY— Optional AES-256-GCM encryption for message bodies. Set to enable — transparent to tools.

configMAILBOX_PORT— 4820 HTTP server port

configMAILBOX_TRANSPORT— http npx -y agent-mailbox-mcp

configMAILBOX_TTL— 86400 Message TTL in seconds (default 24h)

// 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 8 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/lleontor705-agent-mailbox-mcp-7adbsz)](https://m8ven.ai/mcp/lleontor705-agent-mailbox-mcp-7adbsz)

commit: b60eb4b3d66f40b5da46cd19d4d2b9a4d236aa8d

code hash: 24e7ea6f7577baad526182b41ab7ba426e5c420176b264955bf27fcca0fee4e1

verified: 6/22/2026, 12:46:08 PM

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