Service is operating normally: [RESOLVED] Increased API Error Rates

ResolvedminorUnverified reportFirst recorded update Sep 4, 2026, 12:07 AM · Resolved Sep 4, 2026, 12:07 AM

Between 2:12 PM and 3:18 PM PDT, we experienced increased API error rates affecting the STS AssumeRoleWithSAML and AssumeRoleWithWebIdentity APIs in the US-WEST-2 Region. The root cause was determined to be due to an issue with an STS subsystem responsible for communicating with external identity providers. Other AWS Services that rely on these identity federation protocols were also affected. At 3:18 PM, we observed signs of recovery and continued to monitor to ensure stability and full recovery. The issue is resolved and the service is operating normally at this time.

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