CVE-2026-8620

HIGH

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

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7274072

Scores

CVSS v3 7.5
EPSS 0.0023
EPSS Percentile 13.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-444
Status published
Products (2)
IBM/Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 - Interim Fix 002
ibm/websphere_application_server 8.5.0.0 - 8.5.5.30 (2 CPE variants)
Published May 26, 2026
Tracked Since May 26, 2026