Docker Desktop < 4.59.0 ECI Privilege Escalation (CVE-2026-6406)

high Nessus Plugin ID 311262

Synopsis

The remote host has an application installed that is affected by a local privilege escalation vulnerability.

Description

The version of Docker Desktop installed on the remote host is prior to 4.59.0. It is, therefore, affected by a local privilege escalation vulnerability:

- A flaw exists in the Enhanced Container Isolation (ECI) feature related to processing of Docker CLI arguments.
The issue results from an exposed dangerous function. A local attacker who first obtains the ability to execute low-privileged code within a container can leverage this vulnerability to escalate privileges to resources normally protected by Enhanced Container Isolation. (CVE-2026-6406)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Docker Desktop version 4.59.0 or later.

Plugin Details

Severity: High

ID: 311262

File Name: docker_desktop_cve-2026-6406.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 4/30/2026

Updated: 4/30/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-6406

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:docker:docker

Exploit Ease: No known exploits are available

Patch Publication Date: 2/2/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-6406

Detections

Analytics