High severity · published Apr 24, 2026
CVE-2026-41324
basic-ftp vulnerable to denial of service via unbounded memory consumption in Client.list()
7.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
basic-ftp · patrickjuchli
< 5.3.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41324
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41324
Exploit
https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-rp42-5vxx-qpwr
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