CVE-2026-84418: CWE-295 Improper Certificate Validation in IBM DataStage on Cloud Pak for Data
Description
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.
CVSS v3.1
Score 7.4high
Affected software
IBM
DataStage on Cloud Pak for Data
cpe:2.3:a:ibm:datastage_on_cloud_pak_for_data:5.4.0.0:*:*:*:*:*:*:*Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-09-01T17:43:02.446Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acd63eb2cdf04f656e1eb5d
Added to database: 10/12/2026, 22:49:15 UTC
Last updated: 10/12/2026, 22:49:15 UTC
Views: 1
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