Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Isaacs | Tar | < 7.5.10 |
Related Weaknesses (CWE)
References
- https://github.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4bPatch
- https://github.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96ExploitVendor Advisory
FAQ
What is CVE-2026-29786?
CVE-2026-29786 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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 suc...
How severe is CVE-2026-29786?
CVE-2026-29786 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-29786?
Check the references section above for vendor advisories and patch information. Affected products include: Isaacs Tar.