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.
Affected products
patrickjuchli: basic-ftp
References2
- github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-rp4… ExploitMitigationVendor Advisory
- github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-rp4… ExploitMitigationVendor Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 27 · as of 13 November 2026
- CWE
- CWE-400CWE-770
Could this be exploited in your environment?
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