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CVE-2026-79994

No fix known EPSS <1%CVSS 8.7

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.

Published 2026-09-15 · CVE record · OSV

Products: Docker Sandboxes

Distro releases

ReleasePackageFixed in
Ubuntu 26.04 LTSdocker.iono fix
Ubuntu 26.04 LTSdocker.io-appno fix
Ubuntu 26.10docker.iono fix
Ubuntu 26.10docker.io-appno fix
Ubuntu Pro 16.04 LTSdocker.iono fix
Ubuntu Pro 18.04 LTSdocker.iono fix
Ubuntu Pro 20.04 LTSdocker.iono fix
Ubuntu Pro 20.04 LTSdocker.io-appno fix
Ubuntu Pro 22.04 LTSdocker.iono fix
Ubuntu Pro 22.04 LTSdocker.io-appno fix
Ubuntu Pro 24.04 LTSdocker.iono fix
Ubuntu Pro 24.04 LTSdocker.io-appno fix