CVE-2025-53109CWE-59

Model Context Protocol Servers Vulnerable to Path Validation Bypass via Prefix Matching and Symlink Handling

High · published July 2, 2025

CVSS v4.0
7.3
EPSS
1%
Percentile
55.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.3 · HIGH
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
EPSS
0.00765 · 55.0th percentile
Weakness
CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2025-07-02T14:30Z
EPSS history
Timeline
  • 02 JUL 14:30Z
    Model Context Protocol Servers Vulnerable to Path Validation Bypass via Prefix Matching and Symlink Handling
    cvelistv5