GHSA-q66q-fx2p-7w4m

Source

https://github.com/advisories/GHSA-q66q-fx2p-7w4m

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-q66q-fx2p-7w4m/GHSA-q66q-fx2p-7w4m.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-q66q-fx2p-7w4m

Aliases

CVE-2025-53109

Published

2025-07-01T20:13:56Z

Modified

2025-07-02T18:56:39Z

Severity

7.3 (High) CVSS_V4 - 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 CVSS Calculator

Summary

@modelcontextprotocol/server-filesystem allows for path validation bypass via prefix matching and symlink handling

Details

Versions of Filesystem prior to 0.6.3 & 2025.7.1 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 2025.7.1 to resolve.

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

Database specific

{
    "github_reviewed_at": "2025-07-01T20:13:56Z",
    "cwe_ids": [
        "CWE-59"
    ],
    "nvd_published_at": "2025-07-02T15:15:27Z",
    "severity": "HIGH",
    "github_reviewed": true
}

References

Affected packages

npm / @modelcontextprotocol/server-filesystem

Package

Name: @modelcontextprotocol/server-filesystem; View open source insights on deps.dev
Purl: pkg:npm/%40modelcontextprotocol/server-filesystem

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Last affected

0.6.2

npm / @modelcontextprotocol/server-filesystem

Package

Name: @modelcontextprotocol/server-filesystem; View open source insights on deps.dev
Purl: pkg:npm/%40modelcontextprotocol/server-filesystem

Affected ranges

Type: SEMVER
Events: Introduced

2025.1.14

Fixed

2025.7.1