CVE-2026-8644: IBM WebSphere Application Server is affected by an identity spoofing vulnerability

Published Jun 1, 2026
·
Updated

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

Other sources

IBM WebSphere Application Server is vulnerable to identity spoofing.

— IBM

Affected Software

4 affected components
IBM WebSphere Application Server<=9.0
IBM WebSphere Application Server<=8.5
IBM WebSphere Application Server>=8.5.0.0<8.5.5.30
IBM WebSphere Application Server>=9.0.0.0<9.0.5.29

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM WebSphere Application Server (traditional) 8.5 to a version that resolves this vulnerability.

    Fixed in 8.5.5.30
  2. Upgrade

    Upgrade IBM WebSphere Application Server (traditional) 9.0 to a version that resolves this vulnerability.

    Fixed in 9.0.5.29
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch PH71422

Event History

Jun 1, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
CVE Published
via MITRE·05:46 PM
Data Sourced
via MITRE·05:46 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:16 PM
DescriptionSeverityWeaknessAffected Software
Apr 3, 58479
Event
via FIRST·09:31 AM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-8644?

The severity of CVE-2026-8644 is rated as critical with a score of 9.1.

2

How do I fix CVE-2026-8644?

To fix CVE-2026-8644, apply the currently available interim fix or fix pack that contains the fix for APAR PH71422.

3

Which versions of IBM WebSphere Application Server are affected by CVE-2026-8644?

CVE-2026-8644 affects IBM WebSphere Application Server versions 9.0 and 8.5.

4

What type of vulnerability is CVE-2026-8644?

CVE-2026-8644 is an identity spoofing vulnerability.

5

What impact does CVE-2026-8644 have on data integrity?

CVE-2026-8644 can lead to elevated privileges, thereby potentially compromising data integrity.

Company

Resources

Contact

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