CVE-2026-18505 — MEDIUM (5.4)

Q: How severe is CVE-2026-18505?

CVE-2026-18505 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-18505?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Financial Transaction Manager, Redhat Openshift.

Vulnerability 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.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Ibm	Financial Transaction Manager	>= 4.0.7.0, < 4.0.11.0
Redhat	Openshift	-

Related Weaknesses (CWE)

CWE-601

References

https://www.ibm.com/support/pages/node/7288641Vendor Advisory

FAQ

What is CVE-2026-18505?

CVE-2026-18505 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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...

How severe is CVE-2026-18505?

CVE-2026-18505 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18505?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Financial Transaction Manager, Redhat Openshift.