Intermittent 5xx errors for Cloudflare Access authentication requests

Resolved

This incident has been resolved.

Update

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

Update

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.

Update

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

Update

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.