SB2026012003 - Race condition in node-tar
Published: January 20, 2026
Security Bulletin ID
SB2026012003
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2026-23950)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in Path Reservations via Unicode Sharp-S (ß) Collisions on macOS APFS. A remote attacker can trick the victim into using a specially crafted archive to bypass the library's internal concurrency safeguards and perform Symlink Poisoning attacks.
Remediation
Install update from vendor's website.