GHSA-HC55-P739-J48W

Vulnerability from github – Published: 2025-07-01 20:14 – Updated: 2025-07-02 18:57
VLAI?
Summary
@modelcontextprotocol/server-filesystem vulnerability allows for path validation bypass via colliding path prefix
Details

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.

Severity ?
7.3 (High)
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
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@modelcontextprotocol/server-filesystem"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@modelcontextprotocol/server-filesystem"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2025.1.14"
            },
            {
              "fixed": "2025.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-53110"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-01T20:14:00Z",
    "nvd_published_at": "2025-07-02T15:15:27Z",
    "severity": "HIGH"
  },
  "details": "Versions of Filesystem prior to 0.6.3 \u0026 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.\n\nThank you to Elad Beber (Cymulate) for reporting these issues.",
  "id": "GHSA-hc55-p739-j48w",
  "modified": "2025-07-02T18:57:22Z",
  "published": "2025-07-01T20:14:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-hc55-p739-j48w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53110"
    },
    {
      "type": "WEB",
      "url": "https://github.com/modelcontextprotocol/servers/commit/cc99bdabdcad93a58877c5f3ab20e21d4394423d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/modelcontextprotocol/servers"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "@modelcontextprotocol/server-filesystem vulnerability allows for path validation bypass via colliding path prefix"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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