IBM DataStage on Cloud Pak for Data 5.4.0.0 allows an unauthenticated user to perform an arbitrary write into shared Redis under any tenant's key. This collapses the platform's credential-encryption boundary and lets an anonymous caller poison any tenant's cached flow parameters.
IBM strongly recommends addressing the vulnerability now by upgrading DataStage on Cloud Pak for Data.
Product(s)Version(s) number and/or range Remediation/Fix/InstructionsDataStage on Cloud Pak for Data5.4.0.0
Upgrade to 5.4 patch 8 or later by following these instructions https://www.ibm.com/docs/en/software-hub/5.4.x .