CVE-2026-93909: IBM WebSphere Application Server - Liberty

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 is vulnerable by an authentication bypass vulnerability when samlWeb-2.0 feature is enabled.

Affected products

• IBM WebSphere Application Server - Liberty: from 17.0.0.3, up to and including 26.0.0.10

Published 2026-10-13. Last modified 2026-10-14.