Incident detail

Airflow UI showing 403s for some customers

Resolved incidentMajor

Provider

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Apr 27, 2026, 10:06 PM UTC to Apr 28, 2026, 12:16 AM UTC

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Timeline

Incident updates

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Investigating
Apr 27, 2026, 10:06 PM UTC
We are continuing to investigate this issue.
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.
Resolved
Apr 28, 2026, 1:06 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.