---
id: CVE-2026-18505
title: >-
  IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to
  open redirect in the PMP `HostHeaderFilter` (`HostHeaderFilter.java:151`)
summary: >-
  IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to
  open redirect in the PMP `HostHeaderFilter` (`HostHeaderFilter.java:151`). An
  unauthenticated attacker can craft a request with a manipulated `Host` header
  to …
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-601
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: '2026-10-07T13:03:16.430'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18505'
references:
  - url: 'https://www.ibm.com/support/pages/node/7288641'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00247
epssPercentile: 0.15953
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T17:45:51.817996Z'
ingestedAt: '2026-09-23T16:27:22.651Z'
---

## Overview

IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to open redirect in the PMP `HostHeaderFilter` (`HostHeaderFilter.java:151`). An unauthenticated attacker can craft a request with a manipulated `Host` header to redirect authenticated operators to attacker-controlled sites, enabling credential phishing.

## Affected

- `financial_transaction_manager >= 4.0.7.0, < 4.0.11.0`
- `financial_transaction_manager = 4.0.6.0`

## Remediation

Upgrade past the affected range:

- `financial_transaction_manager 4.0.11.0`