High 8.2Published Mar 9, 2026

CVE-2026-31802node-tar Symlink Path Traversal via Drive-Relative Linkpath

Updated under an hour ago (Oct 27, 2026, 12:00 PM ET)

Does this affect you?

It affects isaacs node-tar and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for isaacs node-tar

Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

isaacs node-tar isaacs:node_tar (from the name)	before 7.5.11	CNA record
isaacs tar isaacs:tar	before 7.5.11	NVD

References

References

https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256	x-refsource-confirm, exploit, vendor-advisory
https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad	x-refsource-misc, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.