CVE-2026-18156 IBM Financial Transaction Manager (FTM) is Impacted by Multiple Vulnerabilities

Medium 6.5 Published 22 Sep 2026 Updated 23 Sep 2026

Remote authenticated attackers can bypass security controls and forge user identities in IBM Financial Transaction Manager due to improper authorization.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-18156?

CVE-2026-18156 is a medium-severity missing authorization vulnerability in Ibm Financial Transaction Manager, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to bypass security controls by forging user identities due to improper authorization.

Weakness: CWE-862

Which versions are affected by CVE-2026-18156?

It affects 1 product.

Products include Ibm Financial Transaction Manager.

How do I fix CVE-2026-18156?

No fix has been published for CVE-2026-18156 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-18156 being exploited?

There is no known exploitation of CVE-2026-18156 in the wild and no public exploit code.

All Ibm Financial Transaction Manager vulnerabilities

Sources

Also known as GHSA-vxh7-hwx7-ppv8.