#Linux

Copy Fail (CVE-2026-31431): Nine-Year-Old Linux Flaw Gives Anyone Root

A logic flaw in the Linux kernel's cryptography layer, introduced in 2017 and discovered by an AI code scanner, lets any unprivileged user escalate to root on virtually every Linux system running today. The exploit is public, the proof of concept is 732 bytes, and all major distributions are affected — including Kubernetes nodes and AKS clusters.