HPC cluster Rocket is temporarily unavailable due to ongoing security fixes (CVE-2026-46242 and CVE-2026-43499)

**Due to recently identified Linux kernel vulnerabilities (**[**CVE-2026-46242**](https://access.redhat.com/security/cve/cve-2026-46242) **and** [**CVE-2026-43499**](https://access.redhat.com/security/cve/cve-2026-43499)**), we have temporarily disabled access to the UT HPC Rocket cluster as a precautionary measure to mitigate potential security risks.**Currently, access to login nodes is unavailable. Also, new job submissions are temporarily disabled. Jobs that were already running before the access restrictions were applied continue to run and are not affected. Our system administrators are working to restore full service as quickly as possible. Thank you for your patience!

We have applied the security patches to mitigate the vulnerability. The login nodes are now accessible; however, job submission remains disabled while we complete additional validation and testing. We require more time to ensure the cluster is fully stable before restoring normal operation. We appreciate your patience.

Due to the same security vulnerability, all SAPU machines are currently unavailable while security patches are being applied. We expect service to be restored later tonight. Thank you for your patience.

We are closing login nodes access again. The Rocket cluster is continuously not available. We expect the cluster to remain unavailable for most of the day. We apologize for the inconvenience and will provide updates as they become available.