CVE-2026-81212 IBM DataStage on Cloud Pak for Data - Broken Access Control

IBM DataStage on Cloud Pak for Data 5.4.0.0 contains an unrestricted write vulnerability caused by unauthenticated access to shared Redis, letting anonymous attackers poison any tenant's cached flow parameters, exploit requires no authentication.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Published
20 October 2026
Updated
21 October 2026
Weakness
CWE-285

Vendor fix

Update to the latest version of IBM DataStage on Cloud Pak for Data.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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