Denial of Service Vulnerability in IBM App Connect Enterprise and IBM Integration Bus
CVE-2026-17440

5.5MEDIUM

Key Information:

Vendor

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

What is CVE-2026-17440?

A vulnerability in IBM App Connect Enterprise and IBM Integration Bus allows a local attacker to exploit uncontrolled recursion. This can lead to a denial of service, affecting the availability of the product. Users of versions 13.0.1.0 through 13.0.8.1 and 12.0.1.0 through 12.0.12.28, as well as IBM Integration Bus for z/OS versions 10.1.0.0 through 10.1.0.7, are advised to apply the relevant patches to mitigate this issue.

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:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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