GitHub Enterprise Cloud EU incident

EU - Disruption with some GitHub services

Major Resolved View vendor source →

GitHub Enterprise Cloud EU experienced a major incident on January 12, 2026 affecting Actions, lasting 15m. The incident has been resolved; the full update timeline is below.

Started
Jan 12, 2026, 10:02 AM UTC
Resolved
Jan 12, 2026, 10:17 AM UTC
Duration
15m
Detected by Pingoru
Jan 12, 2026, 10:02 AM UTC

Affected components

Actions

Update timeline

  1. investigating Jan 12, 2026, 10:02 AM UTC

    We are investigating reports of impacted performance for some GitHub services.

  2. investigating Jan 12, 2026, 10:05 AM UTC

    Actions is experiencing degraded performance. We are continuing to investigate.

  3. investigating Jan 12, 2026, 10:09 AM UTC

    Actions jobs that use custom Linux images are failing to start. We've identified the underlying issue and are working on mitigation.

  4. resolved Jan 12, 2026, 10:17 AM UTC

    From January 9 13:11 UTC to January 12 10:17 UTC, new Linux Custom Images generated for Larger Hosted Runners were broken and not able to run jobs. Customers who did not generate new Custom Images during this period were not impacted. This issue was caused by a change to improve reliability of the image creation process. Due to a bug, the change triggered an unrelated protection mechanism which determines if setup has already been attempted on the VM and caused the VM to be marked unhealthy. Only Linux images which were generated while the change was enabled were impacted. The issue was mitigated by rolling back the change. We are improving our testing around Custom Image generation as part of our GA readiness process for the public preview feature.. This includes expanding our canary suite to detect this and similar interactions as part of a controlled rollout in staging prior to any customer impact.