Is CVE-2026-18123 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18123?

CVE-2026-18123 has a CVSS v3 severity of HIGH (7.6).

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CVE-2026-18123

Description

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.