CVE-2026-31431: Copy Fail vulnerability enables Linux root privilege escalation across cloud environments

A high-severity Linux vulnerability, “Copy Fail” (CVE-2026-31431), enables root privilege escalation across cloud environments and Kubernetes workloads. With a working exploit already in the wild, organizations should act quickly to detect, mitigate, and reduce risk.

The post CVE-2026-31431: Copy Fail vulnerability enables Linux root privilege escalation across cloud environments appeared first on Microsoft Security Blog.