Denial of Service Vulnerability in IBM App Connect Enterprise and Integration Bus
CVE-2026-78543

5.3MEDIUM

Key Information:

Vendor

IBM
Status
App Connect Enterprise
Integration Bus For Z/os
Vendor
CVE Published:
4 September 2026

What is CVE-2026-78543?

A flaw in IBM App Connect Enterprise and IBM Integration Bus allows remote attackers to cause a denial of service through an infinite loop. This issue affects multiple versions of the software, potentially disrupting services and impacting system availability. Administrators are urged to apply patches available from IBM to mitigate this risk and maintain system integrity.

Affected Version(s)

App Connect Enterprise 13.0.1.0 <= 13.0.8.1

App Connect Enterprise 12.0.1.0 <= 12.0.12.28

Integration Bus for z/OS 10.1.0.0 <= 10.1.0.7

References

https://www.ibm.com/support/pages/node/7286372
vendor-advisorypatch

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.