CVE-2026-44240
- Source
- https://cve.org/CVERecord?id=CVE-2026-44240
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44240.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-44240
- Aliases
- Downstream
- Related
- Published
- 2026-05-12T20:37:43.098Z
- Modified
- 2026-07-08T08:13:28.552177472Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- basic-ftp allows a malicious FTP server to cause client-side denial of service via unbounded multiline control response buffering
- Details
-
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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44240.json", "cwe_ids": [ "CWE-400", "CWE-770" ], "cna_assigner": "GitHub_M" }- References