basic-ftp vulnerable to denial of service via unbounded memory consumption in Client.list()
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 6 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| patrickjuchli | basic-ftp | before 5.3.0 | 5.3.0 | Patch available | CNA |
| — | basic-ftp (npm) | before 5.3.0 | 5.3.0 | Patch available | GHSA-rp42-5vxx-qpwr |
- basic-ftp Vendorpatrickjuchli Affected before 5.3.0 Fixed in 5.3.0 Patch available CNA
- basic-ftp (npm) Vendor— Affected before 5.3.0 Fixed in 5.3.0 Patch available GHSA-rp42-5vxx-qpwr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:patrickjuchli:basic-ftp:*:*:*:*:*:node.js:*:* | before 5.3.0 | Vulnerable | patrickjuchli |
- cpe:2.3:a:patrickjuchli:basic-ftp:*:*:*:*:*:node.js:*:* Versions before 5.3.0 Vulnerable ·patrickjuchli
Remediation
- Fix · CNA basic-ftp (patrickjuchli) Fixed in 5.3.0
- Fix · GHSA-rp42-5vxx-qpwr basic-ftp (npm) Fixed in 5.3.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Developer Hub 1 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Self-service automation portal 2 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41324
- 2026-10-03 Alias added: GHSA-rp42-5vxx-qpwr
- 2026-10-27 Affected versions changed · Red Hat
References
More patrickjuchli Basic-ftp vulnerabilities
- TI-2026-22075 Basic FTP has Path Traversal Vulnerability in its downloadToDir() method CVSS 3.1CRITICAL 9.8
- TI-2026-28837 FTP Command Injection via CRLF in basic-ftp CVSS 3.1HIGH 8.6
Sources
- CVE-2026-41324 · CVE Program
- CVE-2026-41324 · NVD
- FIRST EPSS
- GHSA-rp42-5vxx-qpwr · GitHub Advisory Database · CC BY 4.0
- CVE-2026-41324 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences