Junglewise Threat Intelligence

CVE-2026-18505: IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to open redirect in the PMP `HostHeaderFilter` (`HostHeaderFilter

CVE-2026-18505 · Severity: medium · CVSS 5.4 · Published 2026-09-23

Executive brief

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.