CVE-2026-23745

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e	Patch
https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97	Exploit Patch Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

18 Feb 2026, 16:20

Type	Values Removed	Values Added
CPE		cpe:2.3:a:isaacs:tar::::::node.js::*
References	~~() https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e -~~	() https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e - Patch
References	~~() https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97 -~~	() https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97 - Exploit, Patch, Vendor Advisory
First Time		Isaacs tar Isaacs
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1

16 Jan 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-16 22:16

Updated : 2026-02-18 16:20

NVD link : CVE-2026-23745

Mitre link : CVE-2026-23745

CVE.ORG link : CVE-2026-23745

JSON object : View

Products Affected

isaacs

tar

CWE

CWE-22

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

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