{"id":"CVE-2026-18490","title":"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:…","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:…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"IBM","product":"Financial Transaction Manager (FTM) for RedHat OpenShift","affected":["financial_transaction_manager_ftm_for_redhat_openshift >= 4.0.6.0 <= 4.0.10.0"],"published":"2026-09-23","updated":"2026-09-23","sourceUpdated":"2026-09-23T20:17:10.633","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18490","references":[{"url":"https://www.ibm.com/support/pages/node/7288641","label":"psirt@us.ibm.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-23T18:13:02.634803Z"},"ingestedAt":"2026-09-23T16:27:22.651Z","slug":"CVE-2026-18490","body":"## Overview\n\nIBM 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}