Link following in node-tar - #VU123630
Published: March 9, 2026
Vulnerability identifier: #VU123630
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: isaacs
Affected software:
node-tar
node-tar
Detailed vulnerability description
The vulnerability allows a remote attacker to overwrite arbitrary files on the system.
The vulnerability exists due to insecure handling of symbolic links inside archives. A remote attacker can supply a specially crafted archive to the application that can overwrite arbitrary files on the system with privileges of the process performing data extraction.
Remediation
Install updates from vendor's website.