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fastify-mcp

A Fastify plugin to run Model Context Protocol (MCP) servers

→ haroldadmin/fastify-mcp· listed on github_topic
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// key findings
⚠️
Known vulnerabilities in dependencies: 4 high
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.
✅
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.
// known CVEs in dependencies4 high2 low

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

high@modelcontextprotocol/sdk@1.24.3GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.24.3GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

highfastify@5.2.1GHSA-jx2c-rxcm-jvmq

Fastify's Content-Type header tab character allows body validation bypass

highfastify@5.2.1GHSA-mg2h-6x62-wpwc

Fastify vulnerable to invalid content-type parsing, which could lead to validation bypass

lowfastify@5.2.1GHSA-444r-cwp2-x5xf

fastify: request.protocol and request.host Spoofable via X-Forwarded-Proto/Host from Untrusted Connections

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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/haroldadmin-fastify-mcp-1j86bu)](https://m8ven.ai/mcp/haroldadmin-fastify-mcp-1j86bu)
commit: 4fce43c8785e3c0a76145386669224c84e41690c
code hash: 4ccf50080f0cd18a2b76a6b78a31bdbe383b945e067a75854f0323a7d7419ef8
verified: 6/15/2026, 1:16:22 PM
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