8.4
High
CVE-2026-103916 Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace
Description
Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Docker Sandboxes 0.28 | 0.28.0 → < 0.51.0 | 0.51.0 |
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