CVE-2026-9320

MEDIUM

IBM WebSphere Application Server and Liberty - Memory-Consumption Denial of Service

Title source: manual
STIX 2.1

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7276579

Scores

CVSS v3 5.9
EPSS 0.0032
EPSS Percentile 24.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (5)
IBM/WebSphere Application Server 8.5.0 - 7.0.3 Interim Fix 017
IBM/WebSphere Application Server 9.0.0 - 7.0.2 Interim Fix 035
IBM/WebSphere Application Server - Liberty 17.0.0.3 - 26.0.0.6
ibm/websphere_application_server 17.0.0.3 - 26.0.0.7
ibm/websphere_application_server 8.5.0.0 - 8.5.5.30
Published Jun 22, 2026
Tracked Since Jun 22, 2026