CVE-2026-11541: CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in IBM WebSphere Application Server
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.
AI Analysis
Technical Summary
CVE-2026-11541 is an HTTP request smuggling vulnerability affecting IBM WebSphere Application Server 9.0 and 8.5, and IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.6. The vulnerability arises from inconsistent interpretation of HTTP requests (CWE-444), potentially allowing an attacker to interfere with the processing of HTTP requests, impacting confidentiality and integrity. The CVSS v3.1 base score is 7.4 with network attack vector, high attack complexity, no privileges required, no user interaction, and unchanged scope. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation could allow an attacker to compromise the confidentiality and integrity of data processed by the affected IBM WebSphere Application Server instances. The vulnerability does not impact availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, organizations should monitor IBM's security advisories for updates. No specific temporary mitigations are provided in the available data.
CVE-2026-11541: CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in IBM WebSphere Application Server
Description
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.
CVSS v3.1
Score 7.4high
Affected software
cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.6:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11541 is an HTTP request smuggling vulnerability affecting IBM WebSphere Application Server 9.0 and 8.5, and IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.6. The vulnerability arises from inconsistent interpretation of HTTP requests (CWE-444), potentially allowing an attacker to interfere with the processing of HTTP requests, impacting confidentiality and integrity. The CVSS v3.1 base score is 7.4 with network attack vector, high attack complexity, no privileges required, no user interaction, and unchanged scope. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation could allow an attacker to compromise the confidentiality and integrity of data processed by the affected IBM WebSphere Application Server instances. The vulnerability does not impact availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, organizations should monitor IBM's security advisories for updates. No specific temporary mitigations are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-08T02:55:08.653Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4436ef27e9c797196d4295
Added to database: 06/30/2026, 21:36:47 UTC
Last enriched: 06/30/2026, 21:51:38 UTC
Last updated: 07/01/2026, 00:50:55 UTC
Views: 5
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