CVE-2026-8644 PUBLISHED

IBM WebSphere Application Server is affected by an identity spoofing vulnerability

Assigner: ibm
Reserved: 14.05.2026 Published: 01.06.2026 Updated: 01.06.2026

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to identity spoofing.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS Score: 9.1

Product Status

Vendor IBM
Product WebSphere Application Server
Versions
  • affected from 9.0 to 1.1.9.12 (incl.)
  • Version 8.5 is affected

Solutions

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71422.

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.28: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71422 https://www.ibm.com/support/pages/node/7274652 --OR-- · Apply Fix Pack 9.0.5.29 or later (targeted availability 3Q2026). 

For V8.5.0.0 through 8.5.5.29: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71422 https://www.ibm.com/support/pages/node/7274652 --OR-- · Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026). 

Additional interim fixes may be available and linked off the interim fix download page.

References

Problem Types

  • CWE-290 Authentication Bypass by Spoofing CWE