CVE-2026-103916

HighCVSS 8.4/10Last modified Nov 3, 2026

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.

Metrics

CVSS 4.0 8.4/10CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
DockerDocker Sandboxes>= 0.28.0, < 0.51.0

References

Timeline

Published
Nov 3, 2026
Last modified
Nov 3, 2026
NVD status
Awaiting Analysis

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CVE-2026-103916: High severity, CVSS 8.4 | Vulnix