CVE-2026-81210: IBM Datastage On Cloud Pak For Data

High severity, CVSS 7.7. EPSS: 0.3% chance of exploitation in the next 30 days.

IBM DataStage on Cloud Pak for Data 5.4.0.0 concatenates three caller-supplied strings into a String.format path on the shared /ds-storage RWX PVC and returns the file with no project ACL — pure IDOR plus traversal. Read is constrained to files named job.log/error.log, but DataStage job logs routinely carry connection strings, {dsnextenc} ciphertexts (decryptable via d2-f023), and customer-data row samples. This is the operator's tenant-to-tenant PVC-leakage threat verbatim; MEDIUM→HIGH via threat match.

Affected products

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

Published 2026-09-10. Last modified 2026-09-16.