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Maintenance

Scheduled Maintenance

Storage-kvm3100 May 18, 2026 13:30-14:30 EDT

We have scheduled a core operating system upgrade for the storage-kvm3100 hostnode. The system will be upgraded to the latest Ubuntu LTS release on Monday, May 18, 2026, to ensure continued stability, security, and performance.

To minimize the actual maintenance window on Monday, our engineering team has already initiated pre-maintenance procedures. A routine background ZFS scrub is currently running to verify storage integrity, and all preliminary package updates have been successfully staged. These current tasks do not impact VM performance or availability.

Customer Impact on Monday, May 18:
When the primary upgrade sequence finalizes on Monday, the hostnode will require a system reboot. To ensure data safety:

All virtual machines on this node will be gracefully halted.

The host system will restart and boot into the upgraded OS environment.

Once the host passes its health checks, all virtual machines will be automatically powered back on.

Customers should expect a brief window of downtime during this final reboot phase. We will update this page when the primary upgrade begins and again when the maintenance is fully completed.
Posted on May 15, 2026 - 18:02 EDT
May 15, 2026

No incidents reported today.

May 14, 2026

No incidents reported.

May 13, 2026
cPanel & WHM Targeted Security Release: Patch Arriving May 13, 2026 at 1:00pm EST
Completed - The scheduled maintenance has been completed.
May 13, 21:00 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 12, 17:00 EDT
Scheduled - This release addresses multiple vulnerabilities across versions of cPanel & WHM, including fixes for the following vulnerabilities rated up to High severity.

CVE-2026-29205
CVE-2026-29206
CVE-2026-32991
CVE-2026-32992
CVE-2026-32993



The patch will be available on May 13 at 1:00pm EST and will be distributed through the standard cPanel automatic update process and through the manual update process. We strongly recommend performing a manual update once the patch is made available.



Versions Impacted:

86, 94, 102, 110, 110 CL6, 118, 124, 126, 130, 132, 134, 136, 136 (WP2)


We recommend ensuring your systems package managers are operational, all updates are applied, and standard cpanel updates are working. After 1 PM EST run another cpanel update.

All cPanel webhosting systems will be updated tomorrow once the patch arrives.
May 12, 16:40 EDT
May 12, 2026
May 11, 2026

No incidents reported.

May 10, 2026

No incidents reported.

May 9, 2026
Linux DirtyFrag Mitigation
Completed - The scheduled maintenance has been completed.
May 9, 19:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 7, 19:30 EDT
Scheduled - A high-priority vulnerability, identified as DirtyFrag, has been detected within specific Linux kernel network modules. This flaw allows for unauthorized memory manipulation via targeted network packets. To ensure the continued integrity of our infrastructure and protect against potential remote code execution or data corruption, we are implementing immediate mitigation steps on our webhosting and storage servers rolling out now.

The following mitigation has been tested:

sudo sh -c "printf 'install esp4 /bin/false\ninstall esp6 /bin/false\ninstall rxrpc /bin/false\n' > /etc/modprobe.d/dirtyfrag.conf; rmmod esp4 esp6 rxrpc 2>/dev/null; true"; echo 3 | sudo tee /proc/sys/vm/drop_caches

The above mitigation will stop this specific exploit. Vendor kernel updates are not yet fully released.

Kernelcare will be issuing patches. Users with KVM or Dedicated Servers running linux are recommended to consider security updates via kernelcare for rebootless updates. Further information is at https://blog.cloudlinux.com/dirty-frag-mitigation-and-kernel-update
May 7, 19:15 EDT
cPanel & WHM Security Update CVE-2026-29201, CVE-2026-29202, CVE-2026-29203 May 08, 12:00pm EST
Completed - The scheduled maintenance has been completed.
May 9, 08:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 8, 08:30 EDT
Scheduled - Minimum Patched Build
11.136.0.9 and higher
11.136.1.10 and higher (WP Squared)
11.134.0.25 and higher
11.132.0.31 and higher
11.130.0.22 and higher
11.126.0.58 and higher
11.124.0.37 and higher
11.118.0.66 and higher
11.110.0.117 and higher

11.110.0.116 and higher (cl6110) - note: Before manually updating, set the update tier to the cl6110 branch by running sed -i "s/CPANEL=.*/CPANEL=cl6110/g" /etc/cpupdate.conf

11.102.0.41 and higher
11.94.0.30 and higher
11.86.0.43 and higher

Recommended steps:
Ensure your system is up to date: apply dnf/yum/apt updates and ensure the package manager works as expected.

After 12 PM Eastern Time run /scripts/upcp

The details of the vulnerability are unknown.

If you don’t have resellers and you access your server from a static IP address, there is no reason for the WHM management ports (2086 and 2087) to be open to the entire world. You can restrict these using the ConfigServer Security & Firewall (CSF). If you do not have csf firewall installed cpanel has a fork which can be installed via your package manager such as: dnf install cpanel-csf

Edit your configuration file: /etc/csf/csf.conf
Locate the TCP_IN list and remove 2086 and 2087.
Restart the firewall with csf -r.

Recent security audits have shown that the Terminal feature within the WHM UI can be a major point of entry. Even if you have locked down SSH, hackers have used this UI feature to install malware. I now recommend disabling it entirely by running this command:

touch /var/cpanel/disable_whm_terminal_ui
May 8, 08:16 EDT
May 8, 2026
May 7, 2026
May 6, 2026

No incidents reported.

May 5, 2026

No incidents reported.

May 4, 2026

No incidents reported.

May 3, 2026

No incidents reported.

May 2, 2026
Cloudlinux cPanel/Directadmin shared hosting rolling reboots
Completed - The scheduled maintenance has been completed.
May 2, 11:15 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 30, 10:15 EDT
Scheduled - Cloudlinux based shared hosting servers will have rolling reboots starting today in order to address cve-2026-31431 - Please review https://www.interserver.net/tips/cve-2026-31431-mitigation/ for further information.
Apr 30, 10:01 EDT
May 1, 2026
Hyperv108 hardware issue & OS corruption
Resolved - This issue is resolved
May 1, 21:25 EDT
Monitoring - We are monitoring the server after VMs restore , all VMs are online
May 1, 21:25 EDT
Identified - Hardware & Windows OS issue is resolved on server and we are working on VMs restore with the latest state
Apr 30, 09:51 EDT
Investigating - We are currently investigating & working on hyperv108 hardware issue which caused OS corruption
Apr 30, 07:05 EDT
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