Description
In Docker Desktop for Windows with the WSL2 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 WSL2; 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. Docker Desktop 4.98.0 or later running on an older WSL remains affected.
Published: 2026-11-03
Score: 9.2 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade to Docker Desktop 4.98.0 or later and WSL 3.0.3 or later. Both are required.

Tracking

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Advisories

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History

Wed, 04 Nov 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 03 Nov 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Docker
Docker docker Desktop
Vendors & Products Docker
Docker docker Desktop

Tue, 03 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
Description In Docker Desktop for Windows with the WSL2 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 WSL2; 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. Docker Desktop 4.98.0 or later running on an older WSL remains affected.
Title Docker Desktop WSL2 AF_VSOCK isolation bypass via 32-bit socketcall
Weaknesses CWE-424
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}


Subscriptions

Docker Docker Desktop
cve-icon MITRE

Status: PUBLISHED

Assigner: Docker

Published:

Updated: 2026-11-04T13:33:36.124Z

Reserved: 2026-10-19T20:23:38.311Z

Link: CVE-2026-112917

cve-icon Vulnrichment

Updated: 2026-11-04T13:33:32.790Z

cve-icon NVD

Status : Received

Published: 2026-11-03T19:17:53.727

Modified: 2026-11-04T14:17:27.450

Link: CVE-2026-112917

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T21:00:04Z

Weaknesses
  • CWE-424

    Improper Protection of Alternate Path