5.4
Medium
CVE-2025-62801 FastMCP is the standard framework for building MCP applications
Description
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the server_name field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This vulnerability is fixed in 2.13.0.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| fastmcp 2.13 | earliest → < 2.13.0 | 2.13.0 |
References
- github.com github.com
Timeline
- Published
- Last modified
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5.3
Medium