# CVE-2026-16433: IBM DataStage path traversal arbitrary file write

Source: https://junglewise.ai/threats/cve-2026-16433-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-2026-16433 · Severity: medium · CVSS 6.5 · Published 2026-11-08

IBM DataStage is a data integration and ETL tool used on Cloud Pak for Data. A remote authenticated attacker could exploit a path traversal vulnerability to write arbitrary files to the system, potentially enabling data manipulation, system compromise, or code execution. This requires the attacker to have valid credentials to access the system.

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-2026-16433 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-16433 being exploited in the wild.

**How severe is CVE-2026-16433?** Medium severity, with a CVSS score of 6.5, 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-2026-16433?** 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-2026-16433 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-16433?** 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

A path traversal vulnerability in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows an authenticated remote attacker to write arbitrary files to the filesystem. The vulnerability stems from insufficient input validation on file path parameters, permitting directory traversal sequences to bypass intended file location restrictions. Exploitation requires valid authentication credentials but no user interaction.

## 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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