CVE-2026-29786CWE-22CWE-59path-traversal

CVE-2026-29786

Medium · published March 7, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
33.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00401 · 33.2th percentile
Weaknesses
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2026-03-07T21:15Z
Affected products (1)
ProductVersionsFixed in
isaacs/tar< 7.5.107.5.10
References (5)
https://github.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9f · [email protected]https://github.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96 · [email protected]https://access.redhat.com/security/cve/CVE-2026-29786 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2445476 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29786.json · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
EPSS history
Timeline
  • 07 MAR 15:32Z
    node-tar: Hardlink Path Traversal via Drive-Relative Linkpath
    cvelistv5