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CVE-2026-79994 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://docs.docker.com/ai/sandboxes/	[email protected]
https://docs.docker.com/ai/sandboxes/security/isolation/	[email protected]
https://github.com/docker/sailor/pull/2021	[email protected]
https://github.com/docker/sandboxes/pull/5342	[email protected]
https://github.com/docker/sbx-releases/releases/tag/v0.42.0	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-367	Time-of-check Time-of-use (TOCTOU) Race Condition	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 16, 2026	CVE Modified	CISA-ADP
Sep 15, 2026	CVE Modified	[email protected]
Sep 15, 2026	New CVE Received	[email protected]