# CVE-2026-18161 — IBM Financial Transaction Manager (FTM) for RedHat OpenShift

> As of 2026-09-23, CVE-2026-18161 is a MEDIUM-severity vulnerability in IBM Financial Transaction Manager (FTM) for RedHat OpenShift, CVSS v3.1 4.3, EPSS 0.2% (8.9th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-18161 as of 2026-09-23; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-23

## What is CVE-2026-18161?

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to falsify transaction audit logs due to improper validation of a client-supplied HTTP header.

The record classifies CVE-2026-18161 under weakness class [CWE-778](https://cwe.mitre.org/data/definitions/778.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 13 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 8.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-22, last modified 2026-09-23

## Is CVE-2026-18161 being exploited?

It currently carries a trending score of 32 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [IBM](https://intel.threadlinqs.com/vendors/ibm): Financial Transaction Manager (FTM) for RedHat OpenShift

## How to fix CVE-2026-18161

No vendor patch reference has been recorded for CVE-2026-18161 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-18161

No threat campaign in the Threadlinqs corpus currently references CVE-2026-18161, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-09-24.

**Vendor advisory and patch**

- [ibm.com — vendor advisory](https://www.ibm.com/support/pages/node/7288641)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-18161
Full detection coverage and IOCs for threats exploiting CVE-2026-18161 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp