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DT502467:IBM WebSphere Application Server Liberty is affected by a deserialization of untrusted data (CVE-2026-93905)

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Abstract

IBM WebSphere Application Server Liberty is affected by a deserialization of untrusted data (CVE-2026-93905)

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 fix for PH71719 where applicable.

View the Security Bulletin for PH71265 (May 26 2026)

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-IFDT50246713 October 2026FC
26.0.0.6-WS-WLP-IFDT50246713 October 2026FC
26.0.0.3-WS-WLP-IFDT50246713 October 2026FC
26.0.0.10-WS-WLP-IFDT50246713 October 2026FC

Archive packages (no IM)

DOWNLOADRELEASE DATE

URL

26009-wlp-archive-IFDT50246713 October 2026FC
26006-wlp-archive-IFDT50246713 October 2026FC
26003-wlp-archive-IFDT50246713 October 2026FC
260010-wlp-archive-IFDT50246713 October 2026FC
Note: FC stands for Fix Central. Review the What is Fix Central (FC)? FAQs for more details.

Problems Solved

DT502467, PH71719

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":"26.0.0.10","Edition":"Liberty Core,Liberty Base,Liberty Network Deployment","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

Document Information

Modified date:
13 October 2026

UID

ibm17292230

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