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Vulnerabilities

Vulnerability · CVE-2026-27699

The FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the method.

Published Feb 25, 2026 · catalog updated Jun 17, 2026 · The FTP client library

Check if you run it

No confirmed exploitation is on record for CVE-2026-27699. EPSS is 1.03%. Act only if a listed version of The FTP client library is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The FTP client library).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.03%
Remediation
Advisory link
Affected products
cpe patrickjuchli/basic-ftp

The FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the method. A malicious FTP server can send directory listings with filenames containing path traversal sequences ( ) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe patrickjuchli/basic-ftpversion unspecified

How to fix CVE-2026-27699

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27699. EPSS is 1.03%. Act only if a listed version of The FTP client library is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 1.03%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 25, 2026 · NIST NVD

    Detected

    The FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the method. A malicious FTP server can send directory listings with filenames containing path traversal sequences ( ) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.

  2. Jun 17, 2026 · NIST NVD

    Updated

    The FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the method. A malicious FTP server can send directory listings with filenames containing path traversal sequences ( ) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.

Sources

  • CVE.orgVulnerability recordCVE-2026-27699

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27699

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27699

    The FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the method. A malicious FTP server can send directory listings with filenames containing path traversal sequences ( ) that cause fil

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.