# CVE-2026-16325: IBM DataStage on Cloud Pak for Data XSS in X-Forwarded-Host header

Source: https://junglewise.ai/threats/cve-2026-16325-ibm-datastage-on-cloud-pak-for-data-5-4-0-0-could-allow-a-remote  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-08. Updated: 2026-11-08  
License: CC BY 4.0 with a link back

CVE-2026-16325 · Severity: medium · CVSS 4.4 · Published 2026-11-08

IBM DataStage on Cloud Pak for Data is a data integration platform used for ETL and data pipeline workflows. A remote authenticated attacker can inject malicious scripts through the X-Forwarded-Host header, allowing code execution in the context of other users' browsers. This could lead to session hijacking, credential theft, or unauthorized actions performed on behalf of legitimate users.

Technologies: [IBM Datastage On Cloud Pak For Data](https://junglewise.ai/threats/technologies/datastage-on-cloud-pak-for-data). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-16325 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-16325 being exploited in the wild.

**How severe is CVE-2026-16325?** Medium severity, with a CVSS score of 4.4, published 8 November 2026.

**Which products and versions are affected?** IBM Datastage On Cloud Pak For Data 5.4.0.0.

**Is there a fix for CVE-2026-16325?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-16325 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-16325?** Check whether you run IBM Datastage On Cloud Pak For Data at an affected version. 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

This is a reflected cross-site scripting (XSS) vulnerability caused by improper neutralization of the X-Forwarded-Host HTTP header. An authenticated attacker can craft a malicious URL with a specially crafted X-Forwarded-Host value that, when clicked by another user, injects arbitrary JavaScript into the page. Exploitation requires both attacker authentication and user interaction (click), and affects DataStage 5.4.0.0.

## Affected products

- IBM DataStage on Cloud Pak for Data 5.4.0.0

## Timeline

- 2026-11-08: disclosed

## References

- [https://www.ibm.com/support/pages/node/7294270](https://www.ibm.com/support/pages/node/7294270)

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