CVE-2026-4410: IBM WebSphere Application Server

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty 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.

Affected products

• IBM WebSphere Application Server: from 8.5.0.0, up to and including 8.5.5.29; from 9.0.0.0, up to and including 9.0.5.27; from 19.0.0.7, up to and including 26.0.0.5

Published 2026-05-27. Last modified 2026-06-17.