What is CVE-2026-12758?

CVE-2026-12758 is a medium-severity vulnerability in IBM Cloud Pak For Business Automation, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-09-14.

How severe is CVE-2026-12758?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in IBM Cloud Pak For Business Automation

CVE-2026-12758

IBM Cloud Pak for Business Automation could allow a remote attacker to bypass authorization and invoke restricted endpoints due to improper validation of HTTP headers.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Ibm Cloud Pak For Business Automation

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2026-12758?: CVE-2026-12758 is a medium-severity vulnerability in IBM Cloud Pak For Business Automation, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-09-14.
How severe is CVE-2026-12758?: Medium severity. CVSS v3 base score is 5.4 out of 10.