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CVE-2026-18490: IBM Financial Transaction Manager (FTM) is Impacted by Multiple Vulnerabilities
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-23 · updated 2026-10-07
- Weakness: CWE-502
Description
IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to unauthenticated remote code execution via Java native deserialization on the PayDir Business Rules Manager RMI SSL endpoint (BrmRMISSLServerSocketFactory.java:95, EP8). An adjacent-network attacker can deliver a crafted serialized payload to achieve arbitrary code execution, exposing all PayDir credentials and enabling manipulation of payment business rules.
Affected products
- IBM Financial Transaction Manager (FTM) for RedHat OpenShift: from 4.0.7.0 before 4.0.11.0; 4.0.6.0, 4.0.6.0-interim_fix_1, 4.0.6.0-interim_fix_2, 4.0.6.0-interim_fix_3, 4.0.6.0-interim_fix_4, 4.0.6.0-interim_fix_5 (+1) — fixed in 4.0.11.0
How to fix
Upgrade to a fixed version: IBM Financial Transaction Manager (FTM) for RedHat OpenShift 4.0.11.0. Check the vendor advisory for mitigations.
References
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