Auth bypass in IBM Financial Transaction Manager

CVE-2026-17635

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to perform unauthorized actions due to improper configuration of HTTP method-based security constraints.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-17635: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17635?
CVE-2026-17635 is a critical-severity vulnerability in IBM Financial Transaction Manager, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-09-22.
How severe is CVE-2026-17635?
Critical severity. CVSS v3 base score is 9.1 out of 10.