CVE-2026-84418
DataStage on Cloud Pak for Data Improper Certificate Validation
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
IBM DataStage on Cloud Pak for Data 5.4.0.0 can allow a man-in-the-middle attacker to present a forged TLS certificate, intercept the connection, and capture the IAM bearer Authorization header automatically attached by the session adapter. The captured token grants full platform-scope tenant API access, enabling the attacker to read and manipulate the victim's DataStage projects, flows, assets, and pipeline definitions. This is client-side SDK code running on the user's own machine, so exploitation requires an external network interceptor rather than a co-tenant in the shared cluster.
| CWE | CWE-295 |
| Vendor | ibm |
| Product | datastage on cloud pak for data |
| Published | Oct 12, 2026 |
| Last Updated | Oct 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
IBM / DataStage on Cloud Pak for Data
5.4.0.0