Outage report · Partial outage

Amazon CloudFront outage on Jul 16, 2026

Increased 5xx Errors

SeverityPartial outage

StartedJul 16, 2026, 08:44UTC

ResolvedJul 16, 2026, 12:21UTC

Duration3h 38m

What happened

Amazon CloudFront reported a partial outage starting Jul 16, 2026, 08:44 UTC, affecting cloudfront. It was marked resolved at Jul 16, 2026, 12:21 UTC.

The incident lasted 3h 38m from first report to resolution.
Amazon CloudFront had reported no other partial or major outages in the 90 days before it.
12 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Amazon CloudFront

Between 12:45 AM and 4:18 AM PDT, we experienced increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. Our engineers were automatically engaged and immediately began investigating the root cause. By 2:57 AM PDT, we identified the root cause of the issue as an internal constraint on the fleet that manages connections to private VPC origins. When this constraint was reached, the system responsible for distributing routing configuration to our network processors failed to load the updated configuration data correctly, affecting routing of VPC Origin connections. At 3:52 AM PDT, we took multiple mitigation actions that led to to full recovery at 4:18 AM PDT. Now that the issue has been mitigated, customers who temporarily changed their origin type can safely revert these changes. Customers utilizing other origin types were not affected by this issue. The issue has been resolved and the service is operating normally.

Read Amazon CloudFront's official incident report ↗