Back to overview
Maintenance

Scheduled Maintenance: cPanel & WHM Security Patch

May 20, 2026 at 1:00pm UTC  –  May 20, 2026 at 4:00pm UTC
Affected services
Montreal Master Node
Paris Master Node

Maintenance
May 20, 2026 at 1:00pm UTC

cPanel has announced a security patch addressing multiple vulnerabilities across cPanel & WHM, rated up to High severity.

There are no known exploits in the wild at this time. Full CVE details will be published by cPanel alongside the patch release.

What we're doing:

StackLinux will apply the patch across affected servers during the maintenance window. Updates are delivered through cPanel's standard process and should complete with minimal to no service disruption. Brief control panel interruptions (WHM, cPanel, Webmail) are possible during the update; websites and email delivery are not expected to be affected.

What you need to do:

Nothing. We're handling it.