Astronomer incident

Airflow UI showing 403s for some customers

Major

Resolved after 2 hours 9 minutes, on April 27, 2026.

resolved Apr 28, 2026, 01:06 AM UTC

We rolled back a change we made to our authentication system. Any image pushes or config changes to a deployment that occurred after our rollback caused the deployment to fix itself, which is why so many people found their 403s resolved themselves after some time.

Started
Apr 27, 2026, 10:06 PM UTC
Resolved
Apr 28, 2026, 12:16 AM UTC
Duration
2h 9m
Detected by Pingoru
Apr 27, 2026, 10:06 PM UTC

Update timeline

  1. investigating Apr 27, 2026, 10:06 PM UTC

    It seems to be only in AWS clusters for now. We have a workaround we can apply while we investigate.

  2. investigating Apr 27, 2026, 10:06 PM UTC

    We are continuing to investigate this issue.

  3. resolved Apr 28, 2026, 01:06 AM UTC

    We rolled back a change we made to our authentication system. Any image pushes or config changes to a deployment that occurred after our rollback caused the deployment to fix itself, which is why so many people found their 403s resolved themselves after some time.

Your product runs on more than Astronomer

Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.

Add your stack →