CVE-2026-56876: Max-Mapper Extract-Zip

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.

Affected products

• Max-Mapper Extract-Zip: up to and including 2.0.1

Published 2026-06-26. Last modified 2026-07-06.