Unverified60% confidenceFactTime unknown
On July 2, 2019, a single regular expression caused a 27-minute global service outage at Cloudflare.
2
Sources
60%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedOn July 2, 2019, Cloudflare experienced a global service outage lasting approximately 27 minutes, directly caused by a regular expression in the WAF rule engine triggering catastrophic backtracking.76% similarUnverified2019年Cloudflare的全球CDN服务因WAF规则中的正则表达式导致CPU耗尽，造成约27分钟的全球性服务中断73% similarUnverifiedRender免费层的Web服务容器在15分钟无入站请求后会自动进入休眠状态，下次请求会经历50秒以上的冷启动延迟61% similarUnverifiedThe complete log spans April 28 to October 10, with 44 public signals across 36 distinct reset days, an average interval of 4.7 days, and one silence period lasting 37 days61% similar
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