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Abstract
IBM WebSphere Application Server Liberty is affected by a privilege escalation when using Liberty collectives (CVE-2026-18499)
Download Description
The fix for this APAR is targeted for inclusion in 26.0.0.9. For more information, see: Recommended Updates for WebSphere Application Server
This fix supersedes (includes) the fix for PH70327 where applicable.
This fix is superseded by later interim fixes.The interim fix for this APAR has been superseded by a later interim fix. Download and install the interim fix for DT503659 to resolve this APAR.
If this APAR applied to older fix packs that the superseding APAR does not, the download link for those older fixes will be preserved below.
Problems Solved
DT497580, PH70327
On
Technical Support
Contact IBM Support at https://www.ibm.com/mysupport/ or 1-800-IBM-SERV (US only).
Document Location
Worldwide
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Problems (APARS) fixed
Problems (APARS) fixed
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Document Information
Modified date:
13 October 2026
UID
ibm17283466