Service degradation: Increased 5xx Errors - AWS Outage

Summary

We continue working to resolve the increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. Customers utilizing other origin types remain unaffected by this issue. We have further scoped the issue down to routing table capacity within the packet processing subsystem responsible for routing requests from CloudFront's edge locations to resources within customer VPCs. We have identified and are currently testing a mitigation strategy to resolve the issue. Once testing is co

Impact

We continue working to resolve the increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. Customers utilizing other origin types remain unaffected by this issue. We have further scoped the issue down to routing table capacity within the packet processing subsystem responsible for routing requests from CloudFront's edge locations to resources within customer VPCs. We have identified and are currently testing a mitigation strategy to resolve the issue. Once testing is co

Lessons Learned

⚠AWS has experienced 65 incidents in the past year. This frequency suggests systemic reliability challenges that may warrant additional monitoring.

📊Incidents related to network, capacity, cdn, routing have occurred 253 times across all providers in the past year. This is one of the most common failure categories in cloud infrastructure.

💡This incident is categorized as: Network / Routing, Capacity Issue. Consider implementing preventive measures specific to this failure category.