CVE-2026-14981: IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities

Published Jul 28, 2026
·
Updated

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits.

Other sources

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits.

— IBM

Affected Software

9 affected components
IBM WebSphere Application Server 9.0
IBM WebSphere Application Server 8.5
IBM WebSphere Application Server - Liberty>=17.0.0.3<=26.0.0.7
IBM WebSphere Application Server<=9.0
IBM WebSphere Application Server<=8.5
IBM WebSphere Application Server - Liberty<=17.0.0.3 - 26.0.0.7
IBM WebSphere Application Server>=8.5.0.0<8.5.5.31
IBM WebSphere Application Server>=9.0.0.0<9.0.5.29
IBM WebSphere Application Server>=17.0.0.3<26.0.0.8

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM WebSphere Application Server - Liberty to a version that resolves this vulnerability.

    Fixed in 26.0.0.8
  2. Upgrade

    Upgrade IBM WebSphere Application Server - traditional to a version that resolves this vulnerability.

    Fixed in 8.5.5.31
  3. Upgrade

    Upgrade IBM WebSphere Application Server - traditional to a version that resolves this vulnerability.

    Fixed in 9.0.5.29
  4. Upgrade

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

    Patch PH72192
  5. Upgrade

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

    Patch PH72191

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·08:22 PM
Data Sourced
via MITRE·08:22 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-2026-14981?

CVE-2026-14981 has a severity rating of 7.5, classified as high.

2

How do I fix CVE-2026-14981?

To fix CVE-2026-14981, apply the latest patches provided by IBM for the affected versions of WebSphere Application Server and Liberty.

3

What types of systems are affected by CVE-2026-14981?

CVE-2026-14981 affects IBM WebSphere Application Server 9.0, 8.5, and IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.7.

4

What is the risk associated with CVE-2026-14981?

CVE-2026-14981 presents a risk of denial of service due to unbounded resource allocation in the HTTP channel.

5

When was CVE-2026-14981 published?

CVE-2026-14981 was published on July 28, 2026.

Company

Resources

Contact

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CVE-2026-14981 - IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities - SecAlerts