Intermittent 5xx errors for Cloudflare Access authentication requests

Update timeline

1. identified Apr 23, 2026, 09:05 PM UTC

   Beginning April 21, a subset of Cloudflare Access customers experienced intermittent HTTP 500 errors on authentication requests. Impact is limited to a small percentage of requests in specific geographies. Service authentication requests are seeing the highest share of the errors. Cloudflare engineering is progressing a corrected rollout under tighter monitoring.

2. monitoring Apr 24, 2026, 05:05 AM UTC

   A fix has been implemented and we are monitoring the results.

3. identified Apr 24, 2026, 08:17 PM UTC

   A fix has been identified and is being deployed in a controlled rollout across impacted regions. Cloudflare engineering is observing a decrease in overall error rates as the rollout progresses. Errors will continue to occur intermittently until the deployment is complete across all affected infrastructure. We will continue to monitor and provide updates as the rollout advances.

4. monitoring Apr 24, 2026, 10:02 PM UTC

   A fix has been implemented and we are monitoring the results.

5. resolved Apr 24, 2026, 11:53 PM UTC

   This incident has been resolved.