CVE-2026-18505

Medium

Description

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.

SeverityMedium
CVSS5.4
Exploit probability—
ProductIbm Financial Transaction Manager
PublishedSep 23, 2026
First seenSep 23, 2026

How to fix

Update
  • ibm financial_transaction_manager4.0.11.0 or later

Affected products

ProductAffected versionsFixed in
ibm financial_transaction_manager4.0.7.0 ≤ v < 4.0.11.0, 4.0.6.04.0.11.0

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