CVE-2026-14974: IBM WebSphere Application Server is affected by cross-site scripting and deserialization vulnerabilities

Published Jul 28, 2026
·
Updated

IBM WebSphere Application Server 8.5, and 9.0 traditional could allow a remote attacker to execute arbitrary code caused by unsafe deserialization of untrusted data.

Other sources

IBM WebSphere Application Server traditional could allow a remote attacker to execute arbitrary code caused by unsafe deserialization of untrusted data.

— IBM

Affected Software

6 affected components
IBM WebSphere Application Server 8.5
IBM WebSphere Application Server 9.0
IBM WebSphere Application Server<=8.5
IBM WebSphere Application Server<=9.0
IBM WebSphere Application Server>=8.5.0.0<8.5.5.31
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 8.5.5.31
  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 IBM WebSphere Application Server traditional to a version that resolves this vulnerability.

    Patch DT496118

Event History

Jul 28, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
CVE Published
via MITRE·08:29 PM
Data Sourced
via MITRE·08:29 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-14974?

The severity of CVE-2026-14974 is high, with a CVSS score of 8.1.

2

How do I fix CVE-2026-14974?

To fix CVE-2026-14974, apply the latest security patches or updates provided by IBM for WebSphere Application Server.

3

What vulnerabilities are associated with CVE-2026-14974?

CVE-2026-14974 is associated with cross-site scripting and unsafe deserialization vulnerabilities.

4

Which versions of IBM WebSphere Application Server are affected by CVE-2026-14974?

CVE-2026-14974 affects IBM WebSphere Application Server versions 8.5 and 9.0 traditional.

5

Can CVE-2026-14974 allow an attacker to execute arbitrary code?

Yes, CVE-2026-14974 can allow a remote attacker to execute arbitrary code due to unsafe deserialization of untrusted data.

Company

Resources

Contact

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