---
cve: "CVE-2026-79994"
severity: "HIGH"
cvss: 8.7
epss: "0.1%"
vendor: "Docker"
kev: false
exploited: false
published: "2026-09-15 21:16:42"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T16:08:28+02:00"
---

# CVE-2026-79994

> 8.7 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- bdfd32bd69bb084959b5f4779310bff21d95bb62 (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-79994) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_