CVE-2026-9320

Medium

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.

SeverityMedium
CVSS5.9
Exploit probability—
ProductIbm Websphere Application Server
PublishedJun 22, 2026
First seenJun 22, 2026

How to fix

Update
  • ibm websphere_application_server8.5.5.30, 9.0.5.29, 26.0.0.7 or later

Affected products

ProductAffected versionsFixed in
ibm websphere_application_server8.5.0.0 ≤ v < 8.5.5.30, 9.0.0.0 ≤ v < 9.0.5.29, 17.0.0.3 ≤ v < 26.0.0.78.5.5.30, 9.0.5.29, 26.0.0.7

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.