Security-related updates to CHPC systems

Updates

Completed
May 06, 2026 at 3:52 PMUTC
Completed
May 06, 2026 at 3:52 PMUTC
Most user-facing systems have been rebooted to address the potential security issue. There may be a small number of outstanding systems, but most users will not encounter service interruptions when such systems are updated. Thank you for your patience and understanding. If you have any questions or concerns, please contact the CHPC at helpdesk@chpc.utah.edu.
Update
May 01, 2026 at 9:09 PMUTC
Update
May 01, 2026 at 9:09 PMUTC
Most CHPC systems have been updated and rebooted to mitigate the security issue. CHPC staff are still working on a small number of systems and addressing some maintenance-related issues with individual systems. Thank you for your patience.
Update
May 01, 2026 at 1:21 AMUTC
Update
May 01, 2026 at 1:21 AMUTC
Thank you for your patience with security-related service interruptions on Center for High Performance Computing systems today. All clusters (granite, notchpeak, kingspeak, and lonepeak in the General Environment and redwood in the Protected Environment) have been returned to service by the team at the CHPC. System administrators have also brought virtual machines (VMs) in the Protected Environment back online and are continuing work on VMs in the General Environment. We will continue to provide updates on the status of systems here.
Update
May 01, 2026 at 12:26 AMUTC
Update
May 01, 2026 at 12:26 AMUTC
Virtual machines in the Protected Environment have been returned to service. CHPC system administrators are now working through virtual machines in the General Environment.
Update
May 01, 2026 at 12:23 AMUTC
Update
May 01, 2026 at 12:23 AMUTC
The clusters in the General Environment (granite, notchpeak, kingspeak, and lonepeak) have been returned to service.
Update
April 30, 2026 at 10:58 PMUTC
Update
April 30, 2026 at 10:58 PMUTC
Storage systems and Data Transfer Nodes (DTNs) in the General Environment and Protected Environment have been rebooted and returned to service.
Update
April 30, 2026 at 10:41 PMUTC
Update
April 30, 2026 at 10:41 PMUTC
The redwood cluster in the Protected Environment has been returned to service. CHPC system administrators are continuing work on other systems.
Update
April 30, 2026 at 9:10 PMUTC
Update
April 30, 2026 at 9:10 PMUTC
CHPC system administrators are continuing work to mitigate potential security issues in the General Environment and Protected Environment. Systems in both environments, including cluster nodes and virtual machines, are being rebooted or will be rebooted. User-facing systems in the Citadel environment have been updated and rebooted and are now available.
In progress
April 30, 2026 at 5:49 PMUTC
In progress
April 30, 2026 at 5:49 PMUTC
Planned
April 30, 2026 at 5:00 PMUTC
Planned
April 30, 2026 at 5:00 PMUTC
The Center for High Performance Computing is taking proactive, precautionary measures to mitigate a security issue that requires immediate attention. CHPC staff will reboot systems in a rolling fashion throughout the day. This will result in access and service disruptions. Running jobs and active sessions on CHPC systems, including jobs on compute nodes and sessions on interactive nodes and Open OnDemand, may be lost as systems are rebooted.

The CHPC will provide additional information and updates throughout the day as services are brought back online. We apologize for the inconvenience and appreciate your patience and support.

CHPC - Security-related updates to CHPC systems – Maintenance details