{"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","affected":["financial_transaction_manager >= 4.0.7.0, < 4.0.11.0","financial_transaction_manager = 4.0.6.0"],"patched":["financial_transaction_manager 4.0.11.0"],"published":"2026-09-23","updated":"2026-10-07","sourceUpdated":"2026-10-07T13:03:40.013","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"],"epss":0.00802,"epssPercentile":0.56455,"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## Affected\n\n- `financial_transaction_manager >= 4.0.7.0, < 4.0.11.0`\n- `financial_transaction_manager = 4.0.6.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `financial_transaction_manager 4.0.11.0`","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}