CVE-2026-23745

Name: CVE-2026-23745
Creator: NVD / NIST
Published: 2026-01-16T22:16:26.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2026-23745 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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). EPSS estimates a 0.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

CVSS 4.0

8.2/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.31%

22.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Isaacs	Tar	< 7.5.3

References

https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405ePatch
https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97Exploit, Patch, Vendor Advisory

Timeline

Published: Jan 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-23745?

How severe is CVE-2026-23745?

CVE-2026-23745 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2026-23745?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-23745?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST