Firefly III MCP Server - Cloudflare Worker

Item: Firefly III MCP Server - Cloudflare Worker
Rating: 0
Author: M8ven

Enables AI tools to interact with Firefly III personal finance manager through the MCP protocol, deployed globally on Cloudflare Workers for low latency.

→ DeathGun3344/firefly-iii-mcp · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 6 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.

// known CVEs in dependencies6 high3 medium22 low

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

highhono@4.7.11GHSA-3vhc-576x-3qv4

Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)

highhono@4.7.11GHSA-88fw-hqm2-52qc

hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard

highhono@4.7.11GHSA-f67f-6cw9-8mq4

Hono JWT Middleware's JWT Algorithm Confusion via Unsafe Default (HS256) Allows Token Forgery and Auth Bypass

highhono@4.7.11GHSA-m732-5p4w-x69g

Hono Improper Authorization vulnerability

highhono@4.7.11GHSA-q5qw-h33p-qvwr

Hono vulnerable to arbitrary file access via serveStatic vulnerability

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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 4 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/deathgun3344-firefly-iii-mcp-dpn53x)](https://m8ven.ai/mcp/deathgun3344-firefly-iii-mcp-dpn53x)

commit: c7d8121b51d0e9e59dae922beda5e54a1bf4d3c7

code hash: 422a2c7b14b719c4722632aced0ad709fcc6b927430359d579e701dbe510fe7d

verified: 6/21/2026, 10:32:07 AM

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