CVE-2026-11549: CWE-284 Improper Access Control in IBM CICS TX Advanced
IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a virtual host bypass vulnerability.
AI Analysis
Technical Summary
CVE-2026-11549 is an improper access control vulnerability (CWE-284) affecting IBM CICS TX Advanced version 10.1. The issue enables a virtual host bypass, potentially allowing unauthorized access to resources or information. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and limited confidentiality and integrity impacts. There is no indication of availability impact. No vendor advisory or patch details are provided in the input data.
Potential Impact
The vulnerability could allow an unauthenticated attacker to bypass virtual host access controls, leading to limited confidentiality and integrity compromise. There is no reported impact on system availability. No active exploitation is known.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, monitor IBM's official advisories for updates. Avoid relying on this version (10.1) in sensitive environments until remediation is confirmed.
CVE-2026-11549: CWE-284 Improper Access Control in IBM CICS TX Advanced
Description
IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a virtual host bypass vulnerability.
CVSS v3.1
Score 6.5medium
Affected software
IBM
CICS TX Advanced
cpe:2.3:a:ibm:cics_tx_advanced:10.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:cics_tx_advanced:10.1.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11549 is an improper access control vulnerability (CWE-284) affecting IBM CICS TX Advanced version 10.1. The issue enables a virtual host bypass, potentially allowing unauthorized access to resources or information. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and limited confidentiality and integrity impacts. There is no indication of availability impact. No vendor advisory or patch details are provided in the input data.
Potential Impact
The vulnerability could allow an unauthenticated attacker to bypass virtual host access controls, leading to limited confidentiality and integrity compromise. There is no reported impact on system availability. No active exploitation is known.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, monitor IBM's official advisories for updates. Avoid relying on this version (10.1) in sensitive environments until remediation is confirmed.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-08T03:27:16.708Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aad91c955bf5e2cf5719170
Added to database: 09/18/2026, 19:32:25 UTC
Last enriched: 09/18/2026, 19:48:00 UTC
Last updated: 09/19/2026, 03:01:22 UTC
Views: 5
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