Where: Global
When: Published July 8, 2026
What happened: Researchers disclosed GhostLock, a 15-year-old Linux kernel use-after-free vulnerability that can give a local user root access and enable container escape. Exploit code is now public, so shared Linux hosts, cloud servers, CI runners and container-heavy environments should be prioritized for kernel updates.
GhostLock Linux kernel flaw enables root and container escape
Edward Kiledjian
@ekiledjian