node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.
History

Tue, 20 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Jan 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}

threat_severity

Important


Mon, 19 Jan 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Isaacs
Isaacs tar
Vendors & Products Isaacs
Isaacs tar

Fri, 16 Jan 2026 22:15:00 +0000

Type Values Removed Values Added
Description node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.
Title node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-01-16T22:00:08.769Z

Updated: 2026-01-20T14:53:24.513Z

Reserved: 2026-01-15T15:45:01.958Z

Link: CVE-2026-23745

cve-icon Vulnrichment

Updated: 2026-01-20T14:53:15.313Z

cve-icon NVD

Status : Received

Published: 2026-01-16T22:16:26.830

Modified: 2026-01-16T22:16:26.830

Link: CVE-2026-23745

cve-icon Redhat

Severity : Important

Publid Date: 2026-01-16T22:00:08Z

Links: CVE-2026-23745 - Bugzilla