CVE-2026-14976: IBM WebSphere Application Server

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is affected by remote code execution with the collectiveController-1.0 feature enabled.

Affected products

• IBM WebSphere Application Server: from 17.0.0.3, before 26.0.0.9 (fixed in 26.0.0.9)

Published 2026-07-28. Last modified 2026-08-05.