Critical severity · published Oct 20, 2026
CVE-2026-81212
DataStage on Cloud Pak for Data Improper Authorization
10.0
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
DataStage on Cloud Pak for Data · IBM
5.4.0.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-81212
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-81212
www.ibm.com
https://www.ibm.com/support/pages/node/7289603
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