building-mcp-server-on-cloudflare
Facilitates the creation and deployment of remote MCP servers on Cloudflare Workers, integrating OAuth authentication and tool management.
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The building-mcp-server-on-cloudflare skill was audited on May 15, 2026 and we found 11 security issues across 3 threat categories. Review the findings below before installing.
Categories Tested
Security Issues
medium line 90
Template literal with variable interpolation in command context
SourceSKILL.md
| 90 | const response = await fetch(`https://api.weather.com/${city}`); |
low line 200
Access to .env file
SourceSKILL.md
| 200 | const result = await this.env.DB.prepare(sql).all(); |
low line 22
External URL reference
SourceSKILL.md
| 22 | | MCP docs | `https://developers.cloudflare.com/agents/mcp/` | Server setup, auth, deployment | |
low line 23
External URL reference
SourceSKILL.md
| 23 | | MCP spec | `https://modelcontextprotocol.io/` | Protocol spec, tool/resource definitions | |
low line 24
External URL reference
SourceSKILL.md
| 24 | | Workers docs | Search tool or `https://developers.cloudflare.com/workers/` | Runtime APIs, bindings, config | |
low line 50
External URL reference
SourceSKILL.md
| 50 | Server runs at `http://localhost:8788/mcp` |
low line 90
External URL reference
SourceSKILL.md
| 90 | const response = await fetch(`https://api.weather.com/${city}`); |
low line 131
External URL reference
SourceSKILL.md
| 131 | # Open http://localhost:5173, enter http://localhost:8788/mcp |
low line 140
External URL reference
SourceSKILL.md
| 140 | Server accessible at `https://[worker-name].[account].workers.dev/mcp` |
low line 151
External URL reference
SourceSKILL.md
| 151 | "args": ["mcp-remote", "https://my-mcp.workers.dev/mcp"] |
low line 267
External URL reference
SourceSKILL.md
| 267 | 3. For local dev, use `http://localhost:8788/callback` |
Scanned on May 15, 2026
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Categorydevelopment
UpdatedMay 31, 2026
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