CVE-2026-84418

DataStage on Cloud Pak for Data Improper Certificate Validation

Published Oct 12, 2026 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now by upgrading DataStage on Cloud Pak for Data. Product(s)Version(s) number and/or range Remediation/Fix/InstructionsDataStage on Cloud Pak for Data5.4.0.0 Upgrade to 5.4 patch 7 or later by following these instructions https://www.ibm.com/docs/en/software-hub/5.4.x .

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:ibm:datastage_on_cloud_pak_for_data:5.4.0:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title DataStage on Cloud Pak for Data Improper Certificate Validation
First Time appeared Ibm
Ibm datastage On Cloud Pak For Data
Weaknesses CWE-295
CPEs cpe:2.3:a:ibm:datastage_on_cloud_pak_for_data:5.4.0.0:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm datastage On Cloud Pak For Data
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Oct 12, 2026, 10:53 PM
Reserved
Sep 1, 2026, 5:43 PM
Status
Analyzed
Published
Oct 12, 2026, 11:17 PM
Modified
Oct 14, 2026, 11:50 PM