Analysis
· May 3, 2026
· PatchDay Alert Editorial Desk
Copy Fail is a 732-byte root shell. Patch your Linux fleet this week.
CVE-2026-31431 is a deterministic privilege escalation in the Linux kernel affecting versions 4.14 through 6.19. A Python script gives any local user root. Every major distro is affected, containers don't help, and the mitigation is trivial.