IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable to multiple CVEs
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?

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 could allow a remote attacker to cause a denial of service due to an infinite loop.

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

.