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    CVE-2026-18490

    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.

    Published:Sep 23, 2026
    Last Modified:Oct 7, 2026
    EPS:Sep 23, 2026
    EPSS Score:0.00253
    CVSS Score:8.8

    Affected Products

    Vendor
    Ibm
    Product
    Financial Transaction Manager
    Vendor
    Ibm
    Product
    Financial Transaction Manager (ftm) for Redhat Openshift
    Vendor
    Ibm
    Product
    Financial Transaction Manager Ftmfor Redhat Openshift
    Vendor
    Redhat
    Product
    Openshift

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

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    CVE-2026-18875 (CVSS 7.3) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to RAG poisoning via unauthenticate…
    CVE-2026-18872 (CVSS 9.3) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to stored cross-site scripting (CWE…
    CVE-2026-18505 (CVSS 5.4) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to open redirect in the PMP `HostHe…
    CVE-2026-18185 (CVSS 7.3) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to access sensitive…
    CVE-2026-18184 (CVSS 7.4) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to obtain sensitive…
    CVE-2026-18181 (CVSS 8.1) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to bypass authentic…
    CVE-2026-18180 (CVSS 6.5) — IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to ob…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High