Security maintenance — virtualization cluster
Timeline · 2 updates
- investigating Jul 07, 2026, 04:17 PM UTC
We're rolling out a precautionary mitigation for a recently disclosed Linux KVM kernel vulnerability — "Januscape" (CVE-2026-53359, and the related CVE-2026-46113). The work is performed as rolling, live-migrated maintenance, so no downtime is expected for most workloads. As part of this mitigation, we are temporarily disabling nested virtualization. Workloads that rely on nesting — running VMs or virtualization-based features inside a VM — may experience errors or reduced functionality until it's restored. This measure is temporary. We will revert it and re-enable nested virtualization as soon as the patched kernel update is available. Updates will be posted here.
- investigating Jul 08, 2026, 03:41 PM UTC
We have updated all nodes and removed the mitigation.