CVE-2026-41324

basic-ftp vulnerable to denial of service via unbounded memory consumption in Client.list()

basic-ftp is an FTP client for Node.js. Versions prior to 5.3.0 are vulnerable to denial of service through unbounded memory growth while processing directory listings from a remote FTP server. A malicious or compromised server can send an extremely large or never-ending listing response to `Client.list()`, causing the client process to consume memory until it becomes unstable or crashes. Version 5.3.0 fixes the issue.

Affected

patrickjuchli · basic-ftp

CVSS v3.1 GITHUB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.49% chance of exploitation in the next 30 days, 41st percentile

Published

2026-04-24

Proof-of-concept exploits (1)

• advisories/GHSA-rp42-5vxx-qpwr

Security advisories

• patrickjuchli/basic-ftp/security/advisories/GHSA-rp42-5vxx-qpwr

References

• CVE Record
• NVD entry