CVE-2026-23745

A flaw was found in the node-tar library. This vulnerability allows an attacker to craft malicious archives that, when extracted, can bypass intended security restrictions. This leads to arbitrary file overwrite and symlink poisoning, potentially allowing unauthorized modification of files on the system.

This vulnerability is rated Important for Red Hat products that utilize the node-tar library. The flaw allows an attacker to perform arbitrary file overwrite and symlink poisoning by crafting malicious tar archives. This occurs due to insufficient path sanitization of hardlink and symbolic link entries, even when the default secure behavior (preservePaths is false) is enabled.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.