Financial Transaction Manager (FTM) for RedHat…: Improper Verification of Cryptographic Signature
CVE-2026-18152 is a high-severity improper verification of cryptographic signature vulnerability in Financial Transaction Manager (FTM) for RedHat OpenShift from IBM, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Financial Transaction Manager (FTM) for RedHat OpenShift versions: 4.0.6.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Financial Transaction Manager to 4.0.11.0 or a later version.
- Read the advisory on ibm.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| IBM | Financial Transaction Manager (FTM) for RedHat OpenShift | 4.0.6.0 | Not stated |
| IBM | Financial Transaction Manager | 4.0.7.0 up to, but not including, 4.0.11.0; 4.0.6.0 | 4.0.11.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.4 | High | CNA (us.ibm.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to forge validly-signed messages due to improper verification of cryptographic signatures.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
More Improper Verification of Cryptographic Signature vulnerabilities (CWE-347)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Financial Transaction Manager (FTM) for RedHat OpenShift
- 8.2 High severity
- 7.3 High severity
- 9.3 Critical severity
- 8.8 High severity
- 7.3 High severity
- 7.4 High severity
Recent Improper Verification of Cryptographic Signature vulnerabilities
- 7.3 High severity
- 7.4 High severity
- 7.1 High severity
- 9.1 Critical severity
- 7.5 High severity
- 8.8 High severity
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