CVE-2026-24842: Isaacs Tar

High severity, CVSS 8.2. EPSS: 0.6% chance of exploitation in the next 30 days.

node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary files outside the extraction directory. Version 7.5.7 contains a fix for the issue.

Affected products

• Isaacs Tar: before 7.5.7 (fixed in 7.5.7)

Published 2026-01-28. Last modified 2026-09-07.