CVE-2026-8620 HIGH

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

Vendor Ibm
Product Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty
Weakness CWE-444
Published May 26, 2026
Last update May 27, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 26, 2026 CVE published
May 27, 2026 Record updated