---
id: CVE-2026-84418
title: >-
  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 adapt…
summary: >-
  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 adapt…
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-295
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T23:17:45.013'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84418'
references:
  - url: 'https://www.ibm.com/support/pages/node/7288649'
    label: psirt@us.ibm.com
tags:
  - nvd
ingestedAt: '2026-10-13T00:09:02.651Z'
---

## Overview

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

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.