cvedb.io
CVE-2026-39983
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2026-04-09T18:17:02.503 · Last modified 2026-06-30T03:19:08.773

Summary

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(), list(), and removeDir(). The library's protectWhitespace() helper only handles leading spaces and returns other paths unchanged, while FtpContext.send() writes the resulting command string directly to the control socket with \r\n appended. This lets attacker-controlled path strings split one intended FTP command into multiple commands. This vulnerability is fixed in 5.2.1.

Affected products

patrickjuchli — basic-ftp

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.