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

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CVE-2026-11541

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/06/2026
Last modified:
29/07/2026

Description

IBM CICS Transaction Gateway for Multiplatforms 9.1, 9.2, 9.3, and 10.1 IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are affected by an HTTP request smuggling vulnerability.

Impact

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

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

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

Base Score 3.x
7.40
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:traditional:*:*:* 8.5.0.0 (including) 8.5.5.31 (excluding)
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:traditional:*:*:* 9.0.0.0 (including) 9.0.5.29 (excluding)
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* 17.0.0.3 (including) 26.0.0.6 (including)

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


References to Advisories, Solutions, and Tools