CVE-2026-15412: IBM WebSphere Application Server

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

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.

Affected products

• IBM WebSphere Application Server: version 9.0 only; version 8.5 only

Published 2026-09-14. Last modified 2026-09-16.