---
id: CVE-2026-81212
title: DataStage on Cloud Pak for Data Improper Authorization
summary: >-
  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 …
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-285
vendor: IBM
product: DataStage on Cloud Pak for Data
affected:
  - datastage_on_cloud_pak_for_data 5.4.0.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:58:51.662Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-81212'
references:
  - url: 'https://www.ibm.com/support/pages/node/7289603'
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.690Z'
---

## Overview

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.

## Affected

- `datastage_on_cloud_pak_for_data 5.4.0.0`

## Remediation

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 .