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Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVE-2026-29786

High
8.2/10

Summary

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as "C:../target.txt", which enables file overwrite outside cwd during normal "tar.x()" extraction. This issue has been patched in version 7.5.10.

  • LOW
  • LOCAL
  • HIGH
  • CHANGED
  • REQUIRED
  • NONE
  • NONE
  • NONE

CWE-22 - Path Traversal

Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.

References

Advisory Timeline

  • Published