Description
The `basic-ftp` FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the `downloadToDir()` method. A malicious FTP server can send directory listings with filenames containing path traversal sequences (`../`) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.
Published: 2026-02-25
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-5rq4-664w-9x2c Basic FTP has Path Traversal Vulnerability in its downloadToDir() method
History

Fri, 27 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 26 Feb 2026 15:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:patrickjuchli:basic-ftp:*:*:*:*:*:node.js:*:*

Thu, 26 Feb 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Patrickjuchli
Patrickjuchli basic-ftp
Vendors & Products Patrickjuchli
Patrickjuchli basic-ftp

Thu, 26 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 25 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Description The `basic-ftp` FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the `downloadToDir()` method. A malicious FTP server can send directory listings with filenames containing path traversal sequences (`../`) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.
Title Basic FTP has Path Traversal Vulnerability in its downloadToDir() method
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}


Subscriptions

Patrickjuchli Basic-ftp
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-27T17:04:33.751Z

Reserved: 2026-02-23T17:56:51.202Z

Link: CVE-2026-27699

cve-icon Vulnrichment

Updated: 2026-02-27T17:04:29.675Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-25T15:20:53.523

Modified: 2026-02-26T15:27:45.597

Link: CVE-2026-27699

cve-icon Redhat

Severity : Important

Publid Date: 2026-02-25T14:58:56Z

Links: CVE-2026-27699 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-02-26T13:16:00Z

Weaknesses