CVE-2026-27699 | THREATINT

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 Reserved 2026-02-23 | Published 2026-02-25 | Updated 2026-02-25 | Assigner GitHub_M

CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 5.2.0

affected

References

github.com/...ic-ftp/security/advisories/GHSA-5rq4-664w-9x2c

github.com/...ommit/2a2a0e6514357b9eda07c2f8afbd3f04727a7cd9

github.com/patrickjuchli/basic-ftp/releases/tag/v5.2.0

cve.org (CVE-2026-27699)

nvd.nist.gov (CVE-2026-27699)

Download JSON