CVE-2026-84421: IBM Datastage On Cloud Pak For Data

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of paths during archive extraction.

Affected products

• IBM Datastage On Cloud Pak For Data: version 5.4.0 only

Published 2026-09-29. Last modified 2026-10-02.