CVE-2026-17440: CWE-674 Uncontrolled Recursion in IBM App Connect Enterprise
Description
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 local attacker to cause a denial of service due to uncontrolled recursion.
CVSS v3.1
Score 5.5medium
Affected software
IBM
App Connect Enterprise
IBM
Integration Bus for z/OS
cpe:2.3:a:ibm:app_connect_enterprise:13.0.1.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:app_connect_enterprise:13.0.8.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:app_connect_enterprise:12.0.1.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:app_connect_enterprise:12.0.12.28:*:*:*:*:*:*:*cpe:2.3:a:ibm:integration_bus_for_zos:10.1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:integration_bus_for_zos:10.1.0.7:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-674 (Uncontrolled Recursion), affects specific versions of IBM App Connect Enterprise and IBM Integration Bus for z/OS. It allows a local attacker with low privileges to trigger uncontrolled recursion, leading to denial of service (DoS) by exhausting system resources. The CVSS 3.1 base score is 5.5, reflecting a medium severity with local attack vector, low attack complexity, and no user interaction required. There is no indication of confidentiality or integrity impact. No official patch or remediation level is currently provided, and no known exploits are reported in the wild.
Potential Impact
The primary impact is denial of service caused by uncontrolled recursion, which can disrupt availability of the affected IBM integration products. There is no impact on confidentiality or integrity. The attack requires local access with low privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor IBM advisories for updates. Until a patch is available, limit local access to trusted users to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T15:52:13.098Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9af761acd9273b49e7789d
Added to database: 09/04/2026, 16:52:49 UTC
Last enriched: 09/07/2026, 12:04:43 UTC
Last updated: 10/19/2026, 18:48:18 UTC
Views: 71
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