Vulnerabilities CVE-2026-23745

CVE-2026-23745

High

Open

TLP:CLEAR

node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization

NVD CVE.org

Critical Infrastructure

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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.

Details

CVSS Score: 8.2
EPSS Score ⓘ: 0.34%

27.1th percentile
CVSS 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
Confidence: 90%
Published: Jan 16, 2026
Last Modified: Aug 10, 2026

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