Auth bypass in IBM Datastage On Cloud Pak For Data

CVE-2026-80378

IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to cause a denial of service due to improper authorization.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-80378: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-80378?
CVE-2026-80378 is a high-severity vulnerability in IBM Datastage On Cloud Pak For Data, classified under Improper Authorization. CVSS score: 8.5/10. Published 2026-09-10.
How severe is CVE-2026-80378?
High severity. CVSS v3 base score is 8.5 out of 10.