DEBIAN-CVE-2026-44240
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.
DEBIAN-CVE-2026-44240
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-44240
node-proxy-agents
Source reference: /affected/0/package/name
- Affected versions
- 0~2024040606-6
Source reference:
/affected/0/versions0~2024040606-6+deb13u1Source reference:
/affected/0/versions0~2025070717+~cs15.2.7-1Source reference:
/affected/0/versions0~2025070717+~cs15.3.7-1Source reference:
/affected/0/versions0~2025070717+~cs15.3.8-1Source reference:
/affected/0/versions0~2025070717+~cs15.3.8-2Source reference:
/affected/0/versions0~2025070717+~cs15.3.8-3Source reference:
/affected/0/versions0~2025070717-1Source reference:
/affected/0/versions0~2025070717-2Source reference:
/affected/0/versions0~2025070717-3Source reference:
/affected/0/versions0~2025070717-4Source reference:
/affected/0/versions0~2025070717-5Source reference:
/affected/0/versions0~2025070717-6Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
node-proxy-agents
Source reference: /affected/1/package/name
- Affected versions
- 0~2024040606-6
Source reference:
/affected/1/versions0~2025070717+~cs15.2.7-1Source reference:
/affected/1/versions0~2025070717+~cs15.3.7-1Source reference:
/affected/1/versions0~2025070717-1Source reference:
/affected/1/versions0~2025070717-2Source reference:
/affected/1/versions0~2025070717-3Source reference:
/affected/1/versions0~2025070717-4Source reference:
/affected/1/versions0~2025070717-5Source reference:
/affected/1/versions0~2025070717-6Source reference:
/affected/1/versions - Fixed versions
- 0~2025070717+~cs15.3.8-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-proxy-agents",
"purl": "pkg:deb/debian/node-proxy-agents?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0~2024040606-6",
"0~2024040606-6+deb13u1",
"0~2025070717+~cs15.2.7-1",
"0~2025070717+~cs15.3.7-1",
"0~2025070717+~cs15.3.8-1",
"0~2025070717+~cs15.3.8-2",
"0~2025070717+~cs15.3.8-3",
"0~2025070717-1",
"0~2025070717-2",
"0~2025070717-3",
"0~2025070717-4",
"0~2025070717-5",
"0~2025070717-6"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44240.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0~2025070717+~cs15.3.8-1"
}
]
}
],
"package": {
"name": "node-proxy-agents",
"purl": "pkg:deb/debian/node-proxy-agents?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0~2024040606-6",
"0~2025070717+~cs15.2.7-1",
"0~2025070717+~cs15.3.7-1",
"0~2025070717-1",
"0~2025070717-2",
"0~2025070717-3",
"0~2025070717-4",
"0~2025070717-5",
"0~2025070717-6"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44240.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57048 · Revision 1
- Added to Heist Feed
- Publisher date