April 30, 2026
Discover Copy Fail, a devastating Linux kernel vulnerability (CVE-2026-31431) affecting kernels from 2017-2026. A tiny 732-byte Python script grants unprivileged users root access across Ubuntu, RHEL, SUSE, and more. Bypassing page cache protections, it corrupts setuid binaries silently without disk writes. Learn who’s affected, immediate mitigations, and why this portable LPE outclasses Dirty Pipe and Dirty Cow. Patch now for multi-tenant servers, Kubernetes, and CI runners.