Cloudflare comes clean on crashing a chunk of the web: How small errors and one tiny bit of code led to a huge mess

The culprit? .*(?:.*=.*)

Cloudflare has published a detailed and refreshingly honest report into precisely what went wrong earlier this month when its systems fell over and took a big chunk of the internet with it.…

via The Register - Data Centre: Cloud
http://go.theregister.com/feed/www.theregister.co.uk/2019/07/12/cloudflare_cpu_cockup/