by PawelKozy · MCP Server · ★ 84
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# MCP Breach-to-Fix Labs Hands-on lab of ten Model Context Protocol (MCP) challenges reproduced from real CVEs and public incident reports. I've run every exploit end-to-end with Cursor/Claude, so the steps aren't theoretical—they're the exact tool calls the assistants followed. Every scenario ships in two modes: Vulnerable - intentionally exploitable implementation you can reproduce end-to-end in Cursor/Claude Desktop. Secure - hardened implementation with defense-in-depth controls that block the attack. These labs were fully battle-tested with Claude/Cursor, ensuring the exact exploit/mitigation flow is reproducible. Each challenge includes Docker services, FastMCP servers, fixtures, and screenshots that prove the exploit really runs—no theoretical write-ups. Challenge Catalog News Prompt Exfiltrat
| Stars | 84 |
| Forks | 12 |
| Language | Python |
| Category | MCP Server |
| Quality Score | 69.1479321280787/100 |
| Last Updated | 2025-12-03 |
| Created | 2025-11-08 |
| Platforms | claude-code, mcp, python |
| Est. Tokens | ~113k |
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mcp-breach-to-fix-labs is Hands-on MCP security lab: 10 real incidents reproduced with vulnerable/secure MCP servers, pytest regressions, and Claude/Cursor battle-tested exploit walkthroughs. It is categorized as a MCP Server with 84 GitHub stars.
mcp-breach-to-fix-labs is primarily written in Python.
You can find installation instructions and usage details in the mcp-breach-to-fix-labs GitHub repository at github.com/PawelKozy/mcp-breach-to-fix-labs. The project has 84 stars and 12 forks, indicating an active community.