> Who knows how many shared hosting providers were hacked with this.

I'd consider a shared hoster which allows users to run their own (native) code and doesn't use VMs for tenant isolation extremely irresponsible in 2026.

This is probably more common than you think. VMs are expensive, both in resources and cost (if you’re using something commercial). OS-level isolation (shared kernel, cgroups, namespaces) is used pervasively