Nebius incident

Region us-central1 partial degradation

Major Resolved View vendor source →

Nebius experienced a major incident on August 19, 2026 affecting Compute Cloud and Object Storage and 1 more component, lasting 21h 32m. The incident has been resolved; the full update timeline is below.

Started
Aug 19, 2026, 10:43 AM UTC
Resolved
Aug 20, 2026, 08:16 AM UTC
Duration
21h 32m
Detected by Pingoru
Aug 19, 2026, 10:43 AM UTC

Affected components

Compute CloudObject StorageVirtual Private Cloud (Networking)Managed Service for Kubernetes®Token FactoryManaged Service for MLflowManaged Service for PostgreSQL®Managed Service for SkyPilotServerless AI

Update timeline

  1. investigating Aug 19, 2026, 10:43 AM UTC

    We are currently investigating this issue.

  2. identified Aug 19, 2026, 11:18 AM UTC

    The root cause has been identified as overheating hardware. GPU performance is impacted, and some nodes may be unavailable.

  3. identified Aug 19, 2026, 12:20 PM UTC

    We are still experiencing temperature issues in the us-central1. Team is working on it

  4. identified Aug 19, 2026, 12:52 PM UTC

    The root cause was fixed, and the situation is stabilizing. The services are recovering.

  5. identified Aug 19, 2026, 01:49 PM UTC

    Services are gradually continuing to recover.

  6. identified Aug 19, 2026, 03:06 PM UTC

    Services are still gradually continuing to recover. Some virtual machines are already running, but not all of them.

  7. identified Aug 19, 2026, 04:00 PM UTC

    Services are still gradually continuing to recover. Many of the virtual machines are already running, but not all of them.

  8. identified Aug 19, 2026, 05:26 PM UTC

    Most nodes are operating normally. The Managed Service for Kubernetes® is experiencing a partial outage, and the team is actively working to restore it.

  9. identified Aug 19, 2026, 07:13 PM UTC

    Most nodes are operating normally. The Managed Service for Kubernetes® is still degraded, but the situation is improving.

  10. identified Aug 19, 2026, 08:50 PM UTC

    The Managed Service for Kubernetes is nearly fully restored, though a subset of nodes remains unavailable.

  11. identified Aug 19, 2026, 09:59 PM UTC

    Most critical issues have been resolved and the region is operational, though a subset of nodes remains unavailable.

  12. resolved Aug 20, 2026, 08:16 AM UTC

    This incident has been resolved.

  13. postmortem Sep 01, 2026, 09:15 AM UTC

    [https://nebius.com/blog/posts/incident-post-mortem-analysis-us-central1-service-disruption-on-august-19](https://nebius.com/blog/posts/incident-post-mortem-analysis-us-central1-service-disruption-on-august-19)