High [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
This high-severity Docker advisory covers CVE-2026-79994 affecting Docker Sandboxes.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
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.
- Docker Sandboxes 0.37.0 before 0.42.0
Official advisory · high-confidence parse· fetched 24 days ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 24 days ago·verify at source
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