CVE-2026-18490 PUBLISHED

IBM Financial Transaction Manager (FTM) is Impacted by Multiple Vulnerabilities

Assigner: ibm
Reserved: 31.07.2026 Published: 23.09.2026 Updated: 23.09.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Adjacent Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	Financial Transaction Manager (FTM) for RedHat OpenShift
Versions	affected from 4.0.6.0 to 4.0.10.0 (incl.)

Solutions

IBM strongly recommends addressing the vulnerabilities now by updating FTM deployments to the following

Affected Product(s)Resolved by VRMFRemediation / First FixFinancial Transaction Manager (FTM) for RedHat OpenShift4.0.11.0 FTM 4.0.11.0 https://www.ibm.com/support/pages/node/7285661

References

https://www.ibm.com/support/pages/node/7288641

Problem Types

CWE-502 Deserialization of Untrusted Data CWE