Authentication Bypass Vulnerability in IBM WebSphere Application Server
CVE-2026-11539

5.3MEDIUM

Key Information:

Vendor

IBM
Status
Websphere Application Server
Vendor
CVE Published:
18 September 2026

What is CVE-2026-11539?

IBM WebSphere Application Server versions 9.0 and 8.5 have been identified to contain an authentication bypass vulnerability in the SOAP/JMX connector. This flaw could potentially allow unauthorized access to sensitive system operations, compromising the integrity of the application and exposing it to various security risks. It is crucial for users to apply the recommended patches to mitigate this vulnerability and ensure system security.

Affected Version(s)

WebSphere Application Server 9.0

WebSphere Application Server 8.5

References

https://www.ibm.com/support/pages/node/7286610
vendor-advisorypatch

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.