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.

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.

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.

Affected products

Ibm Datastage On Cloud Pak For Data — versions 5.4.0.0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

psirt@us.ibm.com (vendor-advisory, patch)

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.