CVE-2026-9071
Analyzed Analyzed - Analysis Complete

Denial of Service in IBM WebSphere Application Server

Publication date: 2026-06-22

Last updated on: 2026-06-23

Assigner: IBM Corporation

Description
IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

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Meta Information

Published
2026-06-22
Last Modified
2026-06-23
Generated
2026-07-13
AI Q&A
2026-06-23
EPSS Evaluated
2026-07-11
NVD
CVE-2026-9071
EUVD
EUVD-2026-38253

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
ibm websphere_application_server From 8.5.0.0 (inc) to 8.5.5.30 (exc)
ibm websphere_application_server From 9.0.0.0 (inc) to 9.0.5.29 (exc)
ibm websphere_application_server From 17.0.0.3 (inc) to 26.0.0.7 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.

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Mitigation Strategies

IBM WebSphere Application Server 9.0, 8.5, and WebSphere Application Server Liberty versions 17.0.0.3 through 26.0.0.6 are vulnerable to a denial of service caused by specially-crafted requests.

No specific workarounds or immediate mitigation commands are provided.

IBM recommends upgrading to fix pack levels or applying interim fixes once they become available to address the issue.

Executive Summary

This vulnerability affects IBM WebSphere Application Server versions 9.0, 8.5, and IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.6. It is a denial of service vulnerability caused by sending a specially-crafted request to the server.

A remote attacker can exploit this vulnerability to cause the server to consume excessive memory resources, potentially leading to service disruption.

Impact Analysis

Exploitation of this vulnerability can lead to a denial of service condition on the affected IBM WebSphere Application Server. This means the server may become unresponsive or crash due to excessive memory consumption triggered by a specially-crafted request from a remote attacker.

As a result, legitimate users may be unable to access services hosted on the server, causing potential downtime and disruption of business operations.

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