Detections
Analytics
Docker Desktop < 4.98.0 Use-After-Free (CVE-2026-98432)
critical Nessus Plugin ID 379723
Synopsis
The remote host has an application installed that is affected by a use-after-free vulnerability.Description
The version of Docker Desktop installed on the remote host is prior to 4.98.0. It is, therefore, affected by a use-after-free vulnerability:- A use-after-free in the Linux kernel's IPv4 TCP handling. tcp_v4_syn_recv_sock() transfers ownership of ireq->ireq_opt to the child socket without copying it, while another CPU can concurrently read ireq_opt under rcu_read_lock() when building a SYNACK. TCP child sockets do not have SOCK_RCU_FREE and inet_sock_destruct() frees inet_opt with a plain kfree(), so the options can be released while still in use, leading to a use-after-free in ip_options_build(). (CVE-2026-98432)
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 4.98.0 or later.See Also
Plugin Details
Severity: Critical
ID: 379723
File Name: docker_desktop_4_98_0.nasl
Version: 1.1
Type: Local
Agent: windows, macosx, unix
Family: Misc.
Published: 11/12/2026
Updated: 11/12/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.2
Percentile: 99.78
CVSS v2
Risk Factor: Critical
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-98432
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Information
CPE: cpe:/a:docker:docker
Patch Publication Date: 11/3/2026
Vulnerability Publication Date: 10/15/2026
Reference Information
CVE: CVE-2026-98432