CVE-2026-8620

EUVD-2026-31921
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.
HTTP Request/Response Smuggling
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 19%
Affected Products (NVD)
VendorProductVersion
ibmwebsphere_application_server
8.5.0.0 ≤
𝑥
< 8.5.5.30
ibmwebsphere_application_server
8.5.0.0 ≤
𝑥
< 8.5.5.30
ibmwebsphere_application_server
9.0.0.0 ≤
𝑥
< 9.0.5.28
ibmwebsphere_application_server
9.0.0.0 ≤
𝑥
< 9.0.5.28
𝑥
= Vulnerable software versions
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://www.ibm.com/support/pages/node/7274072