CVE-2026-11897: IBM WebSphere Application Server

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is 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 17.0.0.3, before 26.0.0.8 (fixed in 26.0.0.8)

Published 2026-07-30. Last modified 2026-08-04.