CVE-2026-18490
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
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.
Risk Assessment
An attacker can execute arbitrary code, access credentials, and modify payment rules, potentially leading to severe security breaches and financial losses. This requires adjacent network access.
Recommendation
Immediately apply patches from IBM or isolate the vulnerable RMI SSL endpoint. Restrict network access to necessary addresses and monitor for suspicious traffic.
Other vulnerabilities in IBM Financial Transaction Manager (FTM) for RedHat OpenShift
See all- CVE-2026-19179High
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to manipulate database queries due to improper neutralization of special elements in a boolean expression.
- CVE-2026-18875High
IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to RAG poisoning via unauthenticated runbook upsert (CWE-74) in the FTM AI agent server (api.vectordb.runbooks.js:51). An unauthenticated attacker can insert malicious runbook content into the agent's vector database to steer AI-driven MCP tool calls, potentially triggering unauthorized payment actions or exfiltrating payment data.
- CVE-2026-18185High
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to access sensitive information and modify system configurations due to missing authentication for a critical function.
- CVE-2026-18184High
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to obtain sensitive information due to an XML external entity (XXE) injection flaw.
- CVE-2026-18181High
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to bypass authentication and access sensitive information due to a hard-coded cryptographic key.
- CVE-2026-18179Medium
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to clear active chat sessions due to improper authorization.
- CVE-2026-18170Medium
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to cause a denial of service due to allocation of resources without limits or throttling.
- CVE-2026-18161Medium
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to falsify transaction audit logs due to improper validation of a client-supplied HTTP header.
- CVE-2026-18156Medium
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to bypass security controls by forging user identities due to improper authorization.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS