CVE-2026-84418 DataStage on Cloud Pak for Data Improper Certificate Validation

High 7.4 Published 12 Oct 2026 Updated 12 Oct 2026

Man-in-the-middle attackers can intercept connections due to improper certificate validation, capturing IAM tokens to read and modify DataStage projects and assets.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-84418?

CVE-2026-84418 is a high-severity vulnerability in Ibm Datastage on Cloud Pak for Data, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-295

Which versions are affected by CVE-2026-84418?

It affects 1 product.

Products include Ibm Datastage on Cloud Pak for Data.

How do I fix CVE-2026-84418?

No fix has been published for CVE-2026-84418 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-84418 being exploited?

There is no known exploitation of CVE-2026-84418 in the wild and no public exploit code.

All Ibm Datastage on Cloud Pak for Data vulnerabilities

Sources

Also known as GHSA-528j-3v52-48qw.