CVE-2025-53109 HIGH

CVE-2025-53109: Model Context Protocol Servers Vulnerable to Path Validation Bypass via Prefix Matching and Symlink Handling

Vendor Modelcontextprotocol
Product servers
Weakness CWE-59
Published July 2, 2025
Last update July 2, 2025
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

01Description

Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior to 0.6.4 or 2025.7.01 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 0.6.4 or 2025.7.01 resolve.

Key dates

02Disclosure timeline

July 2, 2025 CVE published
July 2, 2025 Record updated