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PH71808:IBM WebSphere Application Server Liberty is affected by HTTP request smuggling (CVE-2026-11541)

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Abstract

IBM WebSphere Application Server Liberty is affected by HTTP request smuggling (CVE-2026-11541)

Download Description

The fix for this APAR is targeted for inclusion in 26.0.0.7.

For more information, see: Recommended Updates for WebSphere Application Server

 

 

This fix supersedes (includes) PH68817 and PH71631 where applicable.

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

26.0.0.6-WS-WLP-IFPH7180823 June 2026FC
26.0.0.3-WS-WLP-IFPH7180823 June 2026FC
25.0.0.12-WS-WLP-IFPH7180823 June 2026FC
25.0.0.9-WS-WLP-IFPH7180823 June 2026FC

Archive packages (no IM)

DOWNLOADRELEASE DATE

URL

26006-wlp-archive-IFPH7180823 June 2026FC
26003-wlp-archive-IFPH7180823 June 2026FC
250012-wlp-archive-IFPH7180823 June 2026FC
25009-wlp-archive-IFPH7180823 June 2026FC
Note: FC stands for Fix Central. Review the What is Fix Central (FC)? FAQs for more details.

Problems Solved

PH71808, PH68817, PH71631

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 Application Server"},"Component":"General","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":"25.0.0.12;25.0.0.9;26.0.0.6;26.0.0.3","Edition":"Base","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

Document Information

Modified date:
23 June 2026

UID

ibm17277460

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