CVE-2026-29786

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 v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9f	Patch
https://github.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:isaacs:tar:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-03-07 16:15

Updated : 2026-03-11 21:50

NVD link : CVE-2026-29786

Mitre link : CVE-2026-29786

CVE.ORG link : CVE-2026-29786

JSON object : View

Products Affected

isaacs

tar

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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