Cloudflare Fixes Flaw That Let One Container Read Another Customer's Leftover Disk Data

Cloudflare patched a flaw in its Containers service that let a paying customer read data left behind on disk by other customers' containers on the same server. The leak involved only freed disk space, not live workloads, and an attacker could not choose whose data they received.

• Flaw let one container read leftover data from other customers' containers
• Data came from freed disk space, not live workloads
• Attacker could not choose whose data they received
• Cloudflare has fixed the vulnerability