CVE-2026-27699
Basic FTP has Path Traversal Vulnerability in its downloadToDir() method
- State
- Published
- Severity
- 9.1 Critical
- Published
- Feb 25, 2026
- Updated
- Feb 27, 2026
- Reserved
- Feb 23, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H | GitHub_M |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
basic-ftppatrickjuchli |
|
References
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