CVE-2026-112917: Docker Desktop WSL2 AF_VSOCK isolation bypass via 32-bit socketcall
Critical · CVSS 9.2 (CVSS 4.0)EPSS 0.18%, 8th percentilePublished Updated Assigner: Docker
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.
CWE-424
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Docker: Docker Desktop
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- docs.docker.com/desktop/release-notes/ (opens in new tab)
- github.com/microsoft/WSL2-Linux-Kernel/releases/tag/linux-msft-wsl-6.18.54.1 (opens in new tab)
- github.com/microsoft/WSL/releases/tag/3.0.3 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)