Java Technology Issue in IBM WebSphere Application Server
CVE-2026-8400

8.1HIGH

Key Information:

Vendor

IBM
Status
Websphere Application Server
Websphere Application Server - Liberty
Vendor
CVE Published:
5 August 2026

What is CVE-2026-8400?

A security flaw exists in the Object Request Broker (ORB) component of the IBM SDK, Java Technology Edition, affecting IBM WebSphere Application Server 8.5, 9.0, and Liberty Continuous Delivery. This vulnerability could be exploited by a malicious Internet Inter-ORB Protocol (IIOP) server to induce the loading and instantiation of arbitrary classes, potentially compromising the integrity of the application.

Affected Version(s)

WebSphere Application Server 8.5

WebSphere Application Server 9.0

WebSphere Application Server - Liberty Continuous delivery

References

https://www.ibm.com/support/pages/node/7282446
vendor-advisorypatch

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.