Report: CVE-2026-44240 - basic-ftp allows a malicious FTP server to cause client-side denial of service v

Report: CVE-2026-44240 - basic-ftp allows a malicious FTP server to cause client-side denial of service v

CVE ID :CVE-2026-44240 Published : May 12, 2026, 8:37 p.m. | 39 minutes ago Description :basic-ftp is an FTP client for Node.js. Prior to 5.3.1, basic-ftp is vulnerable to client-side denial of service when parsing FTP control-channel multiline responses. A malicious or compromised FTP server can send an unterminated multiline response during the initial FTP banner phase, before authentication. The client keeps appending attacker-controlled data into FtpContext._partialResponse and repeatedly reparses the accumulated buffer without enforcing a maximum control response size. As a result, an application using basic-ftp can remain stuck in connect() while memory and CPU usage grow under attacker-controlled input. This can lead to process-level denial of service, container OOM kills, worker restarts, queue backlog, or service degradation in applications that automatically connect to FTP endpoints. This vulnerability is fixed in 5.3.1. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
May 12, 2026
Affected Product: Node.js
Impact: denial of service