According to an analysis report published on Cloudflare's official blog, the massive outage on November 18 was not caused by an external network attack, but rather by an incorrect configuration file generated after a database permission adjustment. This caused an anomaly in the core proxy system, triggering outages in multiple products, including CDN, security services, Workers KV, Turnstile, and Access. This is the most serious incident since 2019. The report indicates that the team initially misjudged the incident as a DDoS attack, but ultimately fixed it by rolling back the old configuration file. All affected services were fully restored by 01:06 AM Beijing time on November 19. Cloudflare stated that this outage was "unacceptable" and will accelerate efforts to improve system resilience.