Vulnerability in Patrickjuchli Basic-ftp
CVE-2026-39983
basic-ftp is an FTP client for Node.js. Prior to 5.2.1, basic-ftp allows FTP command injection via CRLF sequences (\r\n) in file path parameters passed to high-level path APIs such as cd(), remove(), rename(), uploadFrom(), downloadTo(), l…
Vulnerability class: CRLF Injection
EPSS: 0.020 (84.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.
Affected products
- Patrickjuchli Basic-ftp — versions < 5.2.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-chqc-8p9q-pq6q (x_refsource_CONFIRM)
- https://github.com/patrickjuchli/basic-ftp/commit/2ecc8e2c500c5234115f06fd1dbde1aa03d70f4b (x_refsource_MISC)
- https://github.com/patrickjuchli/basic-ftp/releases/tag/v5.2.1 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-39983?
- CVE-2026-39983 is a high-severity vulnerability in Patrickjuchli Basic-ftp, classified under CRLF Injection. CVSS score: 8.6/10. Published 2026-04-09.
- How severe is CVE-2026-39983?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2026-39983 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.