What is CVE-2026-18123?

CVE-2026-18123 is a high-severity vulnerability in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 7.6/10. Published 2026-09-22.

How severe is CVE-2026-18123?

High severity. CVSS v3 base score is 7.6 out of 10.

Vulnerability in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift

CVE-2026-18123

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to cause a denial of service due to the improper use of reflection with externally controlled input.

Published 2026-09-22.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Financial Transaction Manager (Ftm) For Red Hat Openshift

Weakness classification (CWE)

CWE-470 — Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection)

References

www.ibm.com/support/pages/node/7288641 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-18123?: CVE-2026-18123 is a high-severity vulnerability in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 7.6/10. Published 2026-09-22.
How severe is CVE-2026-18123?: High severity. CVSS v3 base score is 7.6 out of 10.