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CVE CVE-2026-27699

CVE-2026-27699

Node.js

Severity: CRITICAL
CVSS: 9.1CVSS
Published: 2026-02-25
Last modified: 2026-02-26
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE: CWE-22

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.

References

https://github.com/patrickjuchli/basic-ftp/commit/2a2a0e6514357b9eda07c2f8afbd3f04727a7cd9
https://github.com/patrickjuchli/basic-ftp/releases/tag/v5.2.0
https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-5rq4-664w-9x2c

Summary

Description

References