Docker Desktop on WSL 2 AF_VSOCK Seccomp Bypass (CVE-2026-112917)

high Nessus Plugin ID 379724

Synopsis

The remote host has an application installed that is potentially affected by a seccomp bypass vulnerability.

Description

The version of Docker Desktop installed on the remote Windows host is prior to 4.98.0, or is 4.98.0 or later running on a version of the Windows Subsystem for Linux (WSL) prior to 3.0.3. It is, therefore, potentially affected by a seccomp bypass vulnerability:

- In Docker Desktop for Windows with the WSL 2 backend, an unprivileged Linux container can use 32-bit socketcall to bypass the default seccomp restriction on AF_VSOCK. This can expose host-facing services and Windows files accessible to the logged-in user. The issue affects x86-64 WSL 2; LinuxKit-based backends are unaffected. The issue is fully fixed only with Docker Desktop 4.98.0 or later and WSL 3.0.3 or later, so Docker Desktop 4.98.0 or later running on an older WSL remains affected. (CVE-2026-112917)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number. Nessus is also unable to determine whether the WSL 2 backend is in use or which WSL version is installed, so this finding requires manual verification of the WSL version.

Solution

Upgrade to Docker Desktop version 4.98.0 or later and upgrade WSL to version 3.0.3 or later. Both upgrades are required; Docker Desktop 4.98.0 or later running on a WSL version prior to 3.0.3 remains affected.

Plugin Details

Severity: High

ID: 379724

File Name: docker_desktop_cve-2026-112917.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Misc.

Published: 11/12/2026

Updated: 11/12/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.63

CVSS v2

Risk Factor: Low

Base Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-112917

CVSS v3

Risk Factor: High

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:docker:docker

Patch Publication Date: 11/3/2026

Vulnerability Publication Date: 11/3/2026

Reference Information

CVE: CVE-2026-112917

Detections

Analytics