CVE-2026-29786 (High) detected in tar-2.2.2.tgz, tar-4.4.13.tgz

[mend-bolt-for-github]

CVE-2026-29786 - High Severity Vulnerability

Vulnerable Libraries - tar-2.2.2.tgz, tar-4.4.13.tgz

tar-2.2.2.tgz

tar for node

Library home page: https://registry.npmjs.org/tar/-/tar-2.2.2.tgz

Path to dependency file: /day59/package.json

Path to vulnerable library: /day59/package.json,/day60/package.json

Dependency Hierarchy:

• gulp-sass-4.1.0.tgz (Root Library)
  • node-sass-4.14.1.tgz
    • node-gyp-3.8.0.tgz
      • ❌ tar-2.2.2.tgz (Vulnerable Library)

tar-4.4.13.tgz

tar for node

Library home page: https://registry.npmjs.org/tar/-/tar-4.4.13.tgz

Path to dependency file: /day60/package.json

Path to vulnerable library: /day60/package.json,/day59/package.json

Dependency Hierarchy:

• gulp-4.0.2.tgz (Root Library)
  • glob-watcher-5.0.3.tgz
    • chokidar-2.1.6.tgz
      • fsevents-1.2.9.tgz
        • node-pre-gyp-0.12.0.tgz
          • ❌ tar-4.4.13.tgz (Vulnerable Library)

Found in HEAD commit: c88b9429eb68a85b22f0e39cac7bf20b89cb6709

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2026-03-07

URL: CVE-2026-29786

CVSS 3 Score Details (7.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: High
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2026-03-07

Fix Resolution: https://github.com/isaacs/node-tar.git - v7.5.10

---

Step up your Open Source Security Game with Mend here