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CVE-2026-11548: CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in IBM CICS TX Advanced

0
Medium
VulnerabilityCVE-2026-11548cvecve-2026-11548cwe-444
Published: 09/18/2026 (09/18/2026, 19:05:48 UTC)
Source: CVE Database V5
Vendor/Project: IBM
Product: CICS TX Advanced

Description

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by an HTTP request smuggling vulnerability.

CVSS v3.1

Score 4.8medium

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected software

IBM

CICS TX Advanced

Affected versions
=10.1
CPE configurations (2)
cpe:2.3:a:ibm:cics_tx_advanced:10.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:cics_tx_advanced:10.1.0:*:*:*:*:*:*:*

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/18/2026, 19:48:03 UTC

Technical Analysis

IBM CICS TX Advanced version 10.1 is affected by an HTTP request smuggling vulnerability (CWE-444) due to inconsistent interpretation of HTTP requests. This can potentially allow an attacker to interfere with the processing of HTTP requests, impacting confidentiality and integrity to a limited extent. The CVSS 3.1 vector indicates the attack requires network access with high attack complexity, no privileges, and no user interaction. The vulnerability is published but no official patch or mitigation guidance is currently available.

Potential Impact

The vulnerability could allow an attacker to cause limited confidentiality and integrity impacts by exploiting inconsistent HTTP request parsing. There is no known impact on availability. No active exploitation has been reported.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
ibm
Date Reserved
2026-06-08T03:23:44.255Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6aad91c955bf5e2cf571916f

Added to database: 09/18/2026, 19:32:25 UTC

Last enriched: 09/18/2026, 19:48:03 UTC

Last updated: 09/19/2026, 03:01:24 UTC

Views: 4

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