Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://docs.docker.com/ai/sandboxes/
- https://docs.docker.com/ai/sandboxes/security/isolation/
- https://github.com/docker/sailor/pull/2021
- https://github.com/docker/sandboxes/pull/5342
- https://github.com/docker/sbx-releases/releases/tag/v0.42.0
FAQ
What is CVE-2026-79994?
CVE-2026-79994 is a documented vulnerability. 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...
How severe is CVE-2026-79994?
CVSS scoring is not yet available for CVE-2026-79994. Check NVD for updates.
Is there a patch for CVE-2026-79994?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.