On November 18, 2025, Cloudflare experienced a significant outage affecting core network traffic after a database permission change caused a feature file to double in size, leading to system failures. Initial suspicions of a DDoS attack were disproved as the issue was traced to bad configurations propagated throughout the network. The outage, which resulted in numerous HTTP 5xx error codes and impacted various services, was resolved by reverting to a stable configuration and restarting core proxies. Cloudflare acknowledged the unacceptable nature of the incident and committed to implementing measures to prevent future occurrences.
Cybersecurity.watch
Tracking Threats, Incidents, and Vulnerabilities
Cybersecurity.watch
Tracking Threats, Incidents, and Vulnerabilities