Cloudflare outage traced to one oversized file

Cloudflare says that an hours-long global outage that knocked off several major websites earlier Tuesday was caused by a configuration file that unexpectedly got too big.

What they're saying: Cloudflare spokesperson Jackie Dutton said the outage was caused by a "configuration file that is automatically generated to manage threat traffic."

"The file grew beyond an expected size of entries and triggered a crash in the software system that handles traffic for a number of Cloudflare's services," Dutton said.
https://www.axios.com/2025/11/18/cloudflare-outage-cause-systems-down

3 comments