CVE-2025-53110: Model Context Protocol filesystem server path validation bypass

# CVE-2025-53110: Model Context Protocol filesystem server path validation bypass

https://gcdradar.vercel.app/incidents/cve-2025-53110-model-context-protocol-filesystem-server-path · AIR-2025-0300 · closed 2025-07-01

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-07-01
- AI role: Attack on AI
- Products: @modelcontextprotocol/server-filesystem
- CVE ids: CVE-2025-53110
- CVSS: 7.3

## Summary

The Model Context Protocol filesystem server contains a path validation bypass vulnerability via colliding path prefixes. This allows unintended file access if a prefix matches an allowed directory.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-07-02: CVE-2025-53110: Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). (https://nvd.nist.gov/vuln/detail/CVE-2025-53110)
- 2025-07-01: CVE-2025-53110: @modelcontextprotocol/server-filesystem vulnerability allows for path validation bypass via colliding path prefix (https://github.com/advisories/GHSA-hc55-p739-j48w)

## Sources

- 2025-07-01 GitHub Advisory Database: CVE-2025-53110: @modelcontextprotocol/server-filesystem vulnerability allows for path validation bypass via colliding path prefix https://github.com/advisories/GHSA-hc55-p739-j48w
- 2025-07-02 NVD: CVE-2025-53110: Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). https://nvd.nist.gov/vuln/detail/CVE-2025-53110

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.