Tag: thin provisioning

Cloudflare Fixes Flaw Exposing Leftover Disk Data Between Containers

A startling security flaw was discovered in Cloudflare's container storage system, allowing leftover disk data to be exposed between containers, with researchers finding remnants on 18 of 24 production tests and 20 of 22 underlying machines worldwide. This vulnerability was caused by a misconfigured setting that reused disk blocks without properly wiping them clean.