VDB

CVE-2026-39983

CVE-2026-39983 PUBLISHED CVSS 8.600000381469727 HIGH

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.

EPSS 2.04% · 84.2th percentile

Risk Scores

CVSS 3.1
8.600000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
EPSS Score
2.04%
84.2th percentile

Affected Products

VendorProductVersions
npmbasic-ftp5.2.0, 5.2.0
patrickjuchlibasic-ftp*

Exploit Intelligence

…and 8 more exploits

Timeline

  • Apr 8, 2026 CVE Published
  • Apr 9, 2026 CVE Updated
  • Apr 9, 2026 PoC Published
  • Apr 10, 2026 Security Advisory
  • Apr 11, 2026 EPSS Score
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
  • May 23, 2026 EPSS Score
  • May 24, 2026 EPSS Score

References

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