Major incident

Auth0: Elevated Errors on US-4 Public Cloud

Affected: User Authentication, Machine to Machine Authentication, Management API

Current status of Auth0: Minor issues — live Auth0 status

Timeline

1. Oct 9, 2026, 19:00 UTC
   investigating
   We're currently investigating an incident that impacted our services. This event impacts authentication and Management API functionality. Our team is actively working to understand the root cause and mitigate the issue. We will provide updates as we gather more information.
2. Oct 9, 2026, 19:01 UTC
   monitoring
   We've identified a load spike event that caused elevated service errors on the US-4 Public Cloud environment. These errors have subsided after our autoscaling mechanisms triggered. The issue has self-resolved, and we're monitoring the environment to ensure stability. We'll provide further updates with new information or when changes in status occur.
3. Oct 9, 2026, 19:13 UTC
   resolved
   After monitoring the environment to ensure stability, we confirm that services have been restored. Our investigation into the full root cause will continue, as we confirm the source of the issue. A root cause analysis (RCA) will be posted here within 7 business days. We sincerely apologize for the impact this had on you and your users.
4. Oct 15, 2026, 19:06 UTC
   postmortem
   A root-cause analysis for this issue has been performed and is now available at: [https://cdn.auth0.com/website/2026-10-09_-_Elevated_Service_Errors_on_US-4_Public_Cloud_Environment.pdf](https://cdn.auth0.com/website/2026-10-09_-_Elevated_Service_Errors_on_US-4_Public_Cloud_Environment.pdf)

Updates as published by Auth0 (original).