CVE-2026-8633

Critical

Description

IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to remote code execution in the Web Server Plug-ins, through a specially crafted request.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Ibm Websphere Application Server

PublishedMay 26, 2026

First seenMay 26, 2026

Weakness typeCWE-94Code injection

How to fix

Patches

ibm.com/support/pages/node/7274072

Affected products

Product	Affected versions	Fixed in
ibm websphere_application_server	8.5.0.0 ≤ v ≤ 8.5.5.29, 9.0.0.0 ≤ v ≤ 9.0.5.27	—

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