CVE-2026-8620

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins

State: Published
Severity: 7.5 High
Published: May 26, 2026
Updated: May 27, 2026
Reserved: May 14, 2026

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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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N	ibm

Weaknesses

CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Affected Products

Product	Versions
Web Server Plug-ins for WebSphere Application Server and WebSphere LibertyIBM	8.5, 9.0 through Interim Fix 002Affected

References

https://www.ibm.com/support/pages/node/7274072vendor-advisorypatch

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