CVE-2026-79994
The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the pathname. A malicious guest can replace an intermediate directory with a symlink between validation and connection, causing the host to connect to an arbitrary AF_UNIX socket outside the shared workspace. This can expose data or host-side capabilities provided by the targeted socket.
- Published Sep 15, 2026
- CVSS 8.7 high
- 0.1% chance of exploitation in the next 30 days (EPSS)
- A fix is available