CVE-2025-53110

Model Context Protocol Servers Vulnerable to Path Validation Bypass via Colliding Path Prefix

7.3 HighFix available

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 in cases where the prefix matches an allowed directory. Users are advised to upgrade to 0.6.4 or 2025.7.01 resolve.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.58%Up 0.5 points since Jul 3, 2025

What each source reports

CVE List Score used 7.3

Model Context Protocol Servers Vulnerable to Path Validation Bypass via Colliding Path Prefix

Record: CVE-2025-53110
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-22
Updated: 2026-11-02

EUVDEUVD-2025-19727 7.3

Record: EUVD-2025-19727
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-hc55-p739-j48w 7.3

@modelcontextprotocol/server-filesystem vulnerability allows for path validation bypass via colliding path prefix

Versions of Filesystem prior to 0.6.3 & 2025.7.1 could allow access to unintended files in cases where the prefix matches an allowed directory. Users are advised to upgrade to 2025.7.1 to resolve the issue.

Thank you to Elad Beber (Cymulate) for reporting these issues.

Record: GHSA-hc55-p739-j48w
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-22
Updated: 2026-11-02

NVD 7.3

Record: CVE-2025-53110
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-22
Updated: 2026-11-02

OSV 7.3

Model Context Protocol Servers Vulnerable to Path Validation Bypass via Colliding Path Prefix

Record: CVE-2025-53110
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-22
Updated: 2026-11-02

OSVGHSA-hc55-p739-j48w 7.3

@modelcontextprotocol/server-filesystem vulnerability allows for path validation bypass via colliding path prefix

Thank you to Elad Beber (Cymulate) for reporting these issues.

Record: GHSA-hc55-p739-j48w
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-22
Updated: 2026-11-02

Affected products

modelcontextprotocol servers

Affected packages

Affected packages
Package	Affected	Fixed
`@modelcontextprotocol/server-filesystem` npm	through 0.6.2	None known
`@modelcontextprotocol/server-filesystem` npm	2025.1.14 up to 2025.7.1	2025.7.1

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-53110 is a high vulnerability (CVSS 7.3) in Modelcontextprotocol Servers, published July 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 47th percentile. Fixed in @modelcontextprotocol/server-filesystem 2025.7.1.