CVE-2026-8620

HIGH EPSS 19.7%
Published May 26, 20261mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published May 26, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.5
Exploitability
2.2
Impact
4.7
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
19.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-444

Affected Products 4

VendorProductVersionRange
ibmwebsphere_application_server*≥8.5.0.0  –  <8.5.5.30
ibmwebsphere_application_server*≥8.5.0.0  –  <8.5.5.30
ibmwebsphere_application_server*≥9.0.0.0  –  <9.0.5.28
ibmwebsphere_application_server*≥9.0.0.0  –  <9.0.5.28

References 1

  • ibm.com https://www.ibm.com/support/pages/node/7274072
    PatchVendor Advisory

Remediation

  • ibm.com https://www.ibm.com/support/pages/node/7274072
    PatchVendor Advisory