oyama-opendata-mcp

Item: oyama-opendata-mcp
Rating: 56
Author: M8ven

Read-only MCP server providing population and age distribution data for Oyama City, Japan, enabling AI clients like Claude to query and analyze open data.

→ bishi-eava/oyama-opendata-mcp · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 3 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 dependencies3 high

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

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

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

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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.

configPORT— npm run start:http # http://localhost:3000/mcp ( で変更可)

// 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/bishi-eava-oyama-opendata-mcp-5kx3km)](https://m8ven.ai/mcp/bishi-eava-oyama-opendata-mcp-5kx3km)

commit: b198f206b5ad373749a7c5e84e6ba342b3f0d32f

code hash: d2e9c67e4c3825f33bb948e3f456ad1d8302696d2690451a85c43844e0f74c4d

verified: 7/9/2026, 9:59:48 AM

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