CVE-2026-11540: CWE-863 Incorrect Authorization in IBM WebSphere Application Server
IBM WebSphere Application Server 9.0 and 8.5 could allow a remote attacker to obtain sensitive information about the file system through the FileTransfer servlet.
AI Analysis
Technical Summary
CVE-2026-11540 is an incorrect authorization vulnerability (CWE-863) in IBM WebSphere Application Server 9.0 and 8.5. The flaw exists in the FileTransfer servlet, which could allow a remote attacker without privileges to access sensitive information about the file system. The vulnerability has a CVSS 3.1 score of 5.3, reflecting that it can be exploited remotely without authentication and requires low attack complexity, but only impacts confidentiality. No integrity or availability impact is indicated.
Potential Impact
An unauthenticated remote attacker could obtain sensitive information about the file system on affected IBM WebSphere Application Server installations. This could potentially aid further attacks but does not directly impact system integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently provided. Monitor IBM advisories for updates and apply patches once available.
CVE-2026-11540: CWE-863 Incorrect Authorization in IBM WebSphere Application Server
Description
IBM WebSphere Application Server 9.0 and 8.5 could allow a remote attacker to obtain sensitive information about the file system through the FileTransfer servlet.
CVSS v3.1
Score 5.3medium
Affected software
IBM
WebSphere Application Server
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:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11540 is an incorrect authorization vulnerability (CWE-863) in IBM WebSphere Application Server 9.0 and 8.5. The flaw exists in the FileTransfer servlet, which could allow a remote attacker without privileges to access sensitive information about the file system. The vulnerability has a CVSS 3.1 score of 5.3, reflecting that it can be exploited remotely without authentication and requires low attack complexity, but only impacts confidentiality. No integrity or availability impact is indicated.
Potential Impact
An unauthenticated remote attacker could obtain sensitive information about the file system on affected IBM WebSphere Application Server installations. This could potentially aid further attacks but does not directly impact system integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently provided. Monitor IBM advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-08T02:51:26.366Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aad91c955bf5e2cf571916d
Added to database: 09/18/2026, 19:32:25 UTC
Last enriched: 09/18/2026, 20:03:12 UTC
Last updated: 09/19/2026, 04:01:23 UTC
Views: 3
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