TI-2026-05623 Aliases CVE-2026-6406 GHSA-3f9v-226v-2qc9

Docker Desktop Enhanced Container Isolation bypass via --use-api-socket CLI flag

LOW 39CWE-863Published 2026-05-22 · Updated 2026-05-23

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

The Docker CLI --use-api-socket flag bypasses Enhanced Container Isolation (ECI) restrictions in Docker Desktop. When ECI is enabled, Docker socket mounts from containers are denied unless explicitly allowed via the admin-settings configuration. However, the --use-api-socket flag adds the Docker socket mount via the HostConfig.Mounts field rather than the HostConfig.Binds field. The ECI enforcement in the Docker Desktop API proxy only inspected Binds, allowing the mount to pass unchecked. This grants a container full access to the Docker Engine socket and, if the host user has logged in to container registries, their authentication credentials. A local attacker with the ability to run Docker CLI commands can exploit this to escape ECI restrictions, access the Docker Engine, and potentially escalate privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00211 11th percentileScored 2026-11-07

Fix Fixed Docker Desktop (Docker): 4.59.0

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Docker	Docker Desktop	4.41.0 to before 4.59.0	4.59.0	Patch available	CNA

Docker Desktop VendorDocker Affected 4.41.0 to before 4.59.0 Fixed in 4.59.0 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:docker:docker_desktop::::::::	4.41.0 to before 4.59.0	Vulnerable	Docker
cpe:2.3:o:apple:macos:-:::::::*	not specified by NVD	Running on	Apple
cpe:2.3:o:linux:linux_kernel:-:::::::*	not specified by NVD	Running on	Linux
cpe:2.3:o:microsoft:windows:-:::::::*	not specified by NVD	Running on	Microsoft

cpe:2.3:a:docker:docker_desktop:*:*:*:*:*:*:*:* Versions 4.41.0 to before 4.59.0 Vulnerable ·Docker
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

Fix · CNA Docker Desktop (Docker) Fixed in 4.59.0

Timeline

2026-10-02 Threatist record created from CVE-2026-6406
2026-10-03 Alias added: GHSA-3f9v-226v-2qc9

References

Advisory 1

https://www.zerodayinitiative.com/advisories/ZDI-26-299/

Other 1

https://docs.docker.com/desktop/release-notes/#4590

TI-2023-00593 Code injection in Docker Desktop CVSS 3.1CRITICAL 9.8
TI-2023-00592 Cross-site scripting in Docker Desktop CVSS 3.1CRITICAL 9.8
TI-2023-04753 Docker Desktop before 4.23.0 allows Enhanced Container Isolation bypass via debug shell CVSS 3.1HIGH 8.8
TI-2026-05122 Docker Model Runner container-to-host code execution via MLX-LM model_file importlib loading CVSS 4.0HIGH 8.8
TI-2026-05098 Docker Model Runner container-to-host code execution via unsandboxed trust_remote_code in Python inference backends CVSS 4.0HIGH 8.8
TI-2023-04754 Information disclosure in Docker Desktop CVSS 3.1HIGH 8.0

See all 17 →

Sources

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