CVE-2026-31802

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.

Affected products

Confluence, Red Os, Node-Tar

Isaacs Tar

< 7.5.11

Fix

Available

CVSS 4.0

8.2 HIGH

CVSS 3.1

5.5 MEDIUM

EPSS

0.3% (17th percentile)

Weakness

CWE-22

NVD status

Analyzed

Published

2026-03-09