# CVE-2026-79994

## Summary

- **CVE ID:** CVE-2026-79994
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N)
- **CWE:** CWE-367
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 16, 2026

## 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.

## Affected Products

- Docker — Docker Sandboxes (0.37.0)

## References

- [CNA](https://docs.docker.com/ai/sandboxes/)
- [CNA](https://docs.docker.com/ai/sandboxes/security/isolation/)
- [CNA](https://github.com/docker/sailor/pull/2021)
- [CNA](https://github.com/docker/sandboxes/pull/5342)
- [CNA](https://github.com/docker/sbx-releases/releases/tag/v0.42.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.11%
- **EPSS Percentile:** 1.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._