CVE-2026-8620
High
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 HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Ibm Websphere Application Server
PublishedMay 26, 2026
First seenMay 26, 2026
Weakness typeCWE-444CWE-444
How to fix
Update
- ibm websphere_application_server8.5.5.30, 9.0.5.28 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm websphere_application_server | 8.5.0.0 ≤ v < 8.5.5.30, 9.0.0.0 ≤ v < 9.0.5.28 | 8.5.5.30, 9.0.5.28 |
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