IBM Support

DT496677:IBM WebSphere Application Server could allow a remote attacker to bypass authentication by sending a crafted unauthenticated request (CVE-2026-16184)

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Abstract

IBM WebSphere Application Server could allow a remote attacker to bypass authentication by sending a crafted unauthenticated request (CVE-2026-16184)

Download Description

The fix for this APAR is targeted for inclusion in 8.5.5.31 and 9.0.5.29.

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

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

Important Note: The fixes below are only applicable to WebSphere Application Server Network Deployment and WebSphere Application Server for z/OS.  Other editions such as WebSphere (base), Express, or WebSphere Application Server for Developers do not require a fix.

DOWNLOADRELEASE DATE

URL

9.0.5.28-WS-WASND-IFDT49667728 July 2026FC
9.0.5.25-WS-WASND-IFDT496677 (applies to 9.0.5.25-9.0.5.27)28 July 2026FC
8.5.5.30-WS-WASND-IFDT49667728 July 2026FC
8.5.5.21-WS-WASND-IFDT496677 (applies to 8.5.5.21-8.5.5.29)28 July 2026FC
Note: FC stands for Fix Central. Review the What is Fix Central (FC)? FAQs for more details.

Problems Solved

DT496677

Change History

  • 21 August 2026: Add information about "WASND" labeled fixes.

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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Document Information

Modified date:
21 August 2026

UID

ibm17281577

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