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CVE-2025-53109

Good to know:

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Date: July 2, 2025

Versions of Filesystem prior to 0.6.3 & 2025.3.28 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.

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2025-53109
https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m
https://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f
https://github.com/modelcontextprotocol/servers
https://www.mend.io/vulnerability-database/CVE-2025-53109

Severity Score

Weakness Type (CWE)

Improper Link Resolution Before File Access ('Link Following')

CWE-59

Top Fix

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Upgrade Version

Upgrade to version @modelcontextprotocol/server-filesystem - 2025.7.1;@modelcontextprotocol/server-filesystem - 2025.7.1;https://github.com/modelcontextprotocol/servers.git - 2025.7.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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