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DT503659:IBM WebSphere Application Server Liberty has insufficient isolation between servers sharing an install (CVE-2026-105443)

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Abstract

IBM WebSphere Application Server Liberty has insufficient isolation between servers sharing an install (CVE-2026-105443)

Download Description

The fix for this APAR is targeted for inclusion in 26.0.0.11.For more information, see: Recommended Updates for WebSphere Application Server

 

This fix supersedes (includes) the fixes for the following additional Known Issues (where applicable): DT496294 DT497316 DT497580.

View the Security Bulletin for DT496294

View the Security Bulletin for DT497316

View the Security Bulletin for DT497580


 

 

Download Package

IMPORTANT NOTE:
WebSphere Application Server and Liberty fix access requires S&S Entitlement beginning in 2021. Use properly registered IDs to download the fixes in this table.  

Signature file is provided along with interim fix. See Verifying WebSphere Application Server release packages and Verifying Liberty release packages. 
 

IBM Installation Manager packages

DOWNLOADRELEASE DATE

URL

26.0.0.9-WS-WLP-IFDT50365913 October 2026FC
26.0.0.6-WS-WLP-IFDT50365913 October 2026FC
26.0.0.10-WS-WLP-IFDT50365913 October 2026FC

Archive packages (no IM)

DOWNLOADRELEASE DATE

URL

26009-wlp-archive-IFDT50365913 October 2026FC
26006-wlp-archive-IFDT50365913 October 2026FC
260010-wlp-archive-IFDT50365913 October 2026FC
Note: FC stands for Fix Central. Review the What is Fix Central (FC)? FAQs for more details.

Problems Solved

DT503659, DT496294 DT497316 DT497580

On

Technical Support

Contact IBM Support at https://www.ibm.com/mysupport/ or 1-800-IBM-SERV (US only).

Document Location

Worldwide

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEQTP","label":"WebSphere Liberty"},"Component":"WebSphere Application Server Liberty","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF017","label":"Mac OS"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"26.0.0.9","Edition":"Liberty Core,Liberty Base,Liberty Network Deployment","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

Problems (APARS) fixed
DT503659, DT496294 DT497316 DT497580

Document Information

Modified date:
13 October 2026

UID

ibm17292198

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