Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2026-31802
Summary
node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as "C:../../../target.txt", which enables file overwrite outside cwd during normal "tar.x()" extraction. This vulnerability is fixed in 7.5.11.
- LOW
- LOCAL
- 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
