CVE-2026-79994Docker Sandboxes UDS forwarder can reach arbitrary host Unix sockets through a symlink race
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 8.7 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-367
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Docker
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Docker Docker Sandboxes docker:docker_sandboxes | from 0.37.0 before 0.42.0 | CNA record |
References
- https://docs.docker.com/ai/sandboxes/product
- https://docs.docker.com/ai/sandboxes/security/isolation/product
- https://github.com/docker/sailor/pull/2021patch
- https://github.com/docker/sandboxes/pull/5342patch
- https://github.com/docker/sbx-releases/releases/tag/v0.42.0release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.