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TI-2026-84483 Aliases CVE-2026-112917GHSA-m854-42x8-286m

Seccomp bypass in Docker Desktop WSL2 exposes host services

Priority MEDIUM 41CWE-424Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Docker Desktop for Windows with the x86-64 WSL2 backend is affected, while LinuxKit-based backends are not. An unprivileged Linux container can use the 32-bit socketcall interface to bypass the default seccomp restriction on AF_VSOCK (CWE-424). The container can then reach host-facing services and Windows files accessible to the logged-in user.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00184 8th percentileScored 2026-11-07
Fix Fixed Docker Desktop (Docker): 4.98.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DockerDocker Desktop—4.98.0Patch availableCNA
  • Docker Desktop VendorDocker Affected — Fixed in 4.98.0 Patch available CNA

Remediation

Update Docker Desktop to 4.98.0 or later and WSL to 3.0.3 or later, because Docker Desktop 4.98.0 or later on an older WSL remains affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA Docker Desktop (Docker) Fixed in 4.98.0

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-112917
  2. 2026-11-03 Alias added: GHSA-m854-42x8-286m
  3. 2026-11-04 CISA SSVC decision points changed
  4. 2026-11-04 Priority changed: MEDIUM → LOW
  5. 2026-11-04 CISA SSVC decision points changed
  6. 2026-11-05 Priority changed: LOW → MEDIUM

References

Other 3

  • TI-2019-11833 Docker Desktop Community Edition before 2.1.0.1 allows local users to gain privileges by… KEVCVSS 3.1HIGH 7.8
  • TI-2019-04061 runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows… CVSS 3.1HIGH 8.6
  • TI-2025-08316 Docker Desktop allows unauthenticated access to Docker Engine API from containers CVSS 4.0CRITICAL 9.3
  • TI-2025-02823 Elevation of Privilege in Docker Desktop for Windows during Upgrade due to Insecure Directory Deletion CVSS 4.0HIGH 7.3
  • TI-2026-14229 Tar extraction in moby/go-archive can write outside the destination directory via link following CVSS 4.0HIGH 7.1
  • TI-2023-21271 Docker Machine through 0.16.2 allows an attacker, who has control of a worker node, to… CVSS 3.1MEDIUM 6.5
See all 132 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences