Learn languages naturally with fresh, real content!

Popular Topics
Explore By Region
A Cloudflare outage on Dec. 5, 2025, due to a flawed config change during a React2Shell fix, disrupted 28% of traffic for 25 minutes.
A Cloudflare outage on December 5, 2025, affecting about 28% of HTTP traffic for 25 minutes, was caused by a flawed configuration change made while addressing the critical React2Shell vulnerability (CVE-2025-55182).
The issue stemmed from disabling a WAF testing tool during a fix, triggering a bug in the FL1 proxy’s rules module, not a cyberattack.
The vulnerability allows remote code execution and has been exploited by threat actors, including China-linked groups.
Cloudflare restored service quickly and is reviewing its change processes after a similar November outage.
6 Articles
Una interrupción de Cloudflare el 5 de diciembre de 2025, debido a un cambio de configuración defectuoso durante una corrección de React2Shell, interrumpió el 28% del tráfico durante 25 minutos.