CVE-2026-77816: IBM WebSphere Application Server - Liberty

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 administrative client could allow man-in-the-middle attacks. An attacker could exploit this vulnerability to obtain sensitive information.

Affected products

• IBM WebSphere Application Server - Liberty: from 17.0.0.3, up to and including 26.0.0.9

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