Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-8620

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/05/2026
Last modified:
02/06/2026

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): Low
Availability (A): None

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* 8.5.0.0 (including) 8.5.5.30 (excluding)
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* 8.5.0.0 (including) 8.5.5.30 (excluding)
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* 9.0.0.0 (including) 9.0.5.28 (excluding)
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* 9.0.0.0 (including) 9.0.5.28 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools