Plesk security advisory (AV26-534) – Canadian Centre for Cyber Security

Serial number: AV26-534
Date: June 1, 2026

On May 27, 2026, Plesk published a security advisory to address a vulnerability in the following product:

• Plesk for Linux – versions prior to 18.0.75.1
• Plesk for Linux – versions prior to 18.0.76.2

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.