Arbitrary Write Vulnerability in IBM DataStage on Cloud Pak for Data
CVE-2026-81212

10CRITICAL

Key Information:

Vendor

IBM
Status
Datastage On Cloud Pak For Data
Vendor
CVE Published:
20 October 2026

What is CVE-2026-81212?

The vulnerability in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows an unauthenticated user to perform arbitrary write operations into shared Redis. This flaw compromises the platform's credential-encryption boundary, enabling an anonymous attacker to manipulate or poison cached flow parameters for any tenant. Consequently, this could lead to unauthorized access and potential data breaches, as it undermines the security integrity intended for managing tenant data.

Affected Version(s)

DataStage on Cloud Pak for Data 5.4.0.0

References

https://www.ibm.com/support/pages/node/7289603
vendor-advisorypatch

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.