Plesk has asked all users update servers running their hosting panel, due to a signiificant security issue, designated CVE-2026-64636 and CVE-2026-64637

These issues affect all Plesk versions prior to 18.0.79.5.

Further details and recommended actions for these two vulnerabilities can be found at ...

https://support.plesk.com/hc/en-us/articles/42431868205079-CVE-2026-64636-Vulnerability-in-Plesk-blind-SQL-injection
https://support.plesk.com/hc/en-us/articles/42432168683799-CVE-2026-64637-Authentication-Bypass-Leading-to-Privilege-Escalation-in-Plesk

Where possible we have automatically updated customers plesk installations to bring them up to date.

Anyone who requires help to complete this update, please open a support ticket with us https://rimuhosting.com/ticket/enterticketdetails.jsp

• 4.0.4504 Dallas
• 4.0.4508 Dallas

As part of our ongoing infrastructure improvement work, our team will be relocating switches within the racks at our Dallas datacenter.

This work is being carried out to improve the physical rack layout. It will help us prepare the racks for future network upgrades and capacity improvements.

Maintenance Window:
Start: 10 August 2026, 16:00 Dallas local time
End: 10 August 2026, 19:00 Dallas local time

Impact:
No service interruption is expected.

Our Sydney site team is completing power maintenance in the following window

Start time: 20 August 2026, 06:00 AEST
End time: 20 August 2026, 22:00 AEST

Detail: S1 Sydney will be conducting enhancement works to the electrical infrastructure. This will result in one out of the two power rails in each rack being de-energised whilst the work is carried out. Due to the high availability of our systems it will have no effect on any of our servers.