CVE-2026-9071 Details
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.
A denial-of-service vulnerability has been identified in IBM WebSphere Application Server versions 9.0 and 8.5, as well as in WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.6. This vulnerability allows remote attackers to send specially-crafted requests that cause the server to consume excessive memory resources, potentially leading to degraded performance or service disruption.
Users of IBM WebSphere Application Server Liberty versions 17.0.0.3 to 26.0.0.6 should upgrade to Fix Pack 26.0.0.7 or later, or apply the Interim Fix for PH71631. Users of IBM WebSphere Application Server traditional versions 9.0.0.0 through 9.0.5.28 should upgrade to Fix Pack 9.0.5.29 or later, or apply the Interim Fix for PH71370. For versions 8.5.0.0 through 8.5.5.29, users should upgrade to Fix Pack 8.5.5.30 or later, and also apply the Interim Fix for PH71370.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7276579 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ibm websphere application server | >= 8.5.0.0, < 8.5.5.30 >= 9.0.0.0, < 9.0.5.29 >= 17.0.0.3, < 26.0.0.7 |
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| apple macos | All versions |
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| ibm aix | All versions |
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| ibm i | All versions |
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| ibm z/os | All versions |
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| linux linux kernel | All versions |
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| microsoft windows | All versions |
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 23, 2026 | Initial Analysis | [email protected] |
| Jun 23, 2026 | CVE Modified | CISA-ADP |
| Jun 22, 2026 | New CVE Received | [email protected] |