# CVE-2026-12759: IBM Cloud Pak for Business Automation denial of service via resource consumption

Source: https://junglewise.ai/threats/cve-2026-12759-ibm-cloud-pak-for-business-automation-denial-of-service-via  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-14. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-12759 · Severity: medium · CVSS 6.5 · Published 2026-09-14

IBM Cloud Pak for Business Automation is an enterprise automation platform used to streamline business processes. An authenticated user can trigger a denial of service condition that exhausts server resources (CPU and memory), causing the service to become unavailable to legitimate users.

Technologies: [IBM Cloud Pak For Business Automation](https://junglewise.ai/threats/technologies/cloud-pak-for-business-automation). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-12759 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-12759 being exploited in the wild.

**How severe is CVE-2026-12759?** Medium severity, with a CVSS score of 6.5, published 14 September 2026.

**Which products and versions are affected?** IBM Cloud Pak for Business Automation.

**Is there a fix for CVE-2026-12759?** A patch was published on 2026-08: Patches included in August 2026 iFixes Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-12759 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-12759?** Check whether you run IBM Cloud Pak For Business Automation. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability stems from uncontrolled resource consumption, likely related to one or more of the underlying dependencies (body-parser, Eclipse Parsson, or js-yaml) that fail to properly limit resource allocation during parsing or request processing. An authenticated attacker can craft malicious input—such as oversized request bodies, large JSON documents, or specially crafted YAML—that causes the application to consume excessive CPU and memory. The attack requires authentication, limiting exposure to internal or privileged users. Patches are available in the August 2026 iFixes for Cloud Pak for Business Automation.

## Affected products

- IBM Cloud Pak for Business Automation

## Timeline

- 2026-09-14: disclosed
- 2026-08: patched: Patches included in August 2026 iFixes

## References

- [https://www.ibm.com/support/pages/node/7285931](https://www.ibm.com/support/pages/node/7285931)

## Related threats

- [IBM Cloud Pak for Business Automation HTML injection](https://junglewise.ai/threats/cve-2026-12751-ibm-cloud-pak-for-business-automation-html-injection)
- [IBM Cloud Pak for Business Automation stored cross-site scripting](https://junglewise.ai/threats/cve-2026-12750-ibm-cloud-pak-for-business-automation-stored-cross-site-scripting)
- [IBM Cloud Pak for Business Automation stored XSS in Web UI](https://junglewise.ai/threats/cve-2026-12749-ibm-cloud-pak-for-business-automation-stored-xss-in-web-ui)
- [IBM Cloud Pak for Business Automation XPath injection](https://junglewise.ai/threats/cve-2026-11864-ibm-cloud-pak-for-business-automation-xpath-injection)
- [IBM Cloud Pak for Business Automation authorization bypass via HTTP header validation](https://junglewise.ai/threats/cve-2026-12758-ibm-cloud-pak-for-business-automation-authorization-bypass-via)