VULNERABILITY INTELLIGENCE

CVE-2026-8858

CVSS score8.8 HIGH

EPSS probability0.41%

CISA KEVNot currently listed

Published2026-06-22

Last modified2026-10-25

Description

IBM WebSphere Application Server and IBM WebSphere Application Server Liberty are vulnerable to remote code execution and denial of service in the WebSphere Web Server Plug-in component. This vulnerability can be exploited when an attacker impersonates the application server and sends crafted responses to the plug-in.