IBM WebSphere Application Server Liberty 17.0.0.3 < 26.0.0.4 (7267351)

high Nessus Plugin ID 303559

Synopsis

The remote web application server is affected by a vulnerability.

Description

The version of IBM WebSphere Application Server Liberty running on the remote host is affected by a vulnerability as referenced in the 7267351 advisory.

- Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.
(CVE-2026-29063)

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

Solution

Update to IBM WebSphere Application Server Liberty version 26.0.0.4 or later. Alternatively, upgrade to the minimal fix pack levels required by the interim fix and then apply Interim Fix PH70510.

Plugin Details

Severity: High

ID: 303559

File Name: websphere_liberty_7267351.nasl

Version: 1.1

Type: remote

Agent: windows, macosx, unix

Family: Web Servers

Published: 3/25/2026

Updated: 3/25/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-29063

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:ibm:websphere_application_server

Required KB Items: installed_sw/IBM WebSphere Application Server

Exploit Ease: No known exploits are available

Patch Publication Date: 3/24/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-29063

Detections

Analytics