avanan-legacy-mcp

A legacy MCP server for Avanan cloud email security, providing tools to manage threat detection, email policies, and security incidents through Avanan's API.

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// key findings

🚨

Known vulnerabilities in dependencies: 2 critical, 1 high

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

🔐

You'll be asked for 2 credentials: AVANAN_SECRET, AVANAN_TOKEN

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

// known CVEs in dependencies2 critical1 high

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

criticalvitest@2.1.8GHSA-5xrq-8626-4rwp

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

criticalvitest@2.1.8GHSA-9crc-q9x8-hgqq

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

high@modelcontextprotocol/sdk@1.25.3GHSA-345p-7cg4-v4c7

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

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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.

configAVANAN_APP_ID— yes Application ID provided by Avanan Support (x-av-app-id).

configAVANAN_REGION— no us \ eu \ ca \ ap. Defaults to JWT region claim, then us.

🔐 secretAVANAN_SECRET— yes Shared secret used to compute the x-av-sig HMAC.

🔐 secretAVANAN_TOKEN— yes Token from the Avanan auth handshake (x-av-token).

configLOG_LEVEL— no debug \ info \ warn \ error (default info).

configMCP_HTTP_PORT— no HTTP transport port (default 8080).

configMCP_TRANSPORT— no stdio (default) or http.

// 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 3 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/wyre-technology-avanan-legacy-mcp-1n330n)](https://m8ven.ai/mcp/wyre-technology-avanan-legacy-mcp-1n330n)

commit: a50c3071cdd763969bd53d6776f4efc0ed5a328c

code hash: 516052024675b3700e8a5646c64358c3e27d04732fb17cf5cc0e398ce9945bf4

verified: 6/10/2026, 11:16:16 AM

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