Auth0 experienced a critical incident on September 30, 2026 affecting Auth0 US-5 (Production) (Authentication) and Auth0 US-5 (Production) (Machine to Machine) and 1 more component, lasting 52m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 30, 2026, 08:11 PM UTC
We are currently investigating an incident that impacted our services. Users may experience issues with authentication functionality. Our team is actively working to understand the root cause and mitigate the issue. We will provide updates as we gather more information.
- identified Sep 30, 2026, 08:32 PM UTC
We're continuing to investigate the service disruption on the US-5 Public Cloud Environment. We're assessing service metrics and logs to determine the source of the issue. We're evaluating a potential issue within infrastructure hosted by our third-party service provider. We'll provide further updates as our investigation progresses, and as changes in status occur.
- identified Sep 30, 2026, 08:54 PM UTC
We're actively investigating with our third-party provider regarding the latency discrepancies that we observe within their hosted infrastructure. Additionally, we're investigating an issue involving a high number of service connections causing exhaustion on backend resources. We'll continue to provide updates as we proceed to address the root cause of the service disruption.
- monitoring Sep 30, 2026, 09:14 PM UTC
We've observed that service error rates on the US-5 Public Cloud Environment have subsided and returned to baseline, marking a return to service functionality. The service disruption has been mitigated and we're monitoring the ensure stability. Meanwhile, our investigation is continuing and we're collaborating with our third-party provider's technical teams to identify and address the root cause of the issue within their hosted infrastructure.
- resolved Sep 30, 2026, 09:24 PM UTC
After monitoring the environment to ensure stability, we observe that services have been restored. Our investigation into origin of the event will continue, in collaboration with our third-party provider. 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.
- resolved Oct 07, 2026, 07:38 PM UTC
A root-cause analysis for this issue has been performed and is now available at: [https://cdn.auth0.com/website/2026-09-30_-_Elevated_Errors_on_US-5_Public_Cloud_Environment.pdf](https://cdn.auth0.com/website/2026-09-30_-_Elevated_Errors_on_US-5_Public_Cloud_Environment.pdf)