CVE-2026-41324

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductPatrickjuchli Basic-ftp

PublishedApr 24, 2026

First seenApr 24, 2026

Weakness typeCWE-400Uncontrolled resource consumption CWE-770Allocation of resources without limits

How to fix

Update

patrickjuchli basic-ftp5.3.0 or later
basic-ftp5.3.0 or later

Affected products

Product	Affected versions	Fixed in
patrickjuchli basic-ftp	v < 5.3.0	5.3.0
basic-ftpnpm	v < 5.3.0	5.3.0

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