IBM DataStage on Cloud Pak for Data 5.4.0.0 certificate validation

Summaryinfo

A vulnerability was found in IBM DataStage on Cloud Pak for Data 5.4.0.0 and classified as problematic. This affects an unknown function. The manipulation results in certificate validation. This vulnerability is cataloged as CVE-2026-84418. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in IBM DataStage on Cloud Pak for Data 5.4.0.0. Affected is an unknown code. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on integrity. CVE summarizes:

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.

The advisory is available at ibm.com. This vulnerability is traded as CVE-2026-84418 since 09/01/2026. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/13/2026). This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Cloud Software

Vendor

• IBM

Name

• DataStage on Cloud Pak for Data

Version

• 5.4.0.0

License

• commercial

Website

• Vendor: https://www.ibm.com/

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