---
title: "CVE-2026-83231: Oracle Fusion Middleware Helidon - Undefined"
description: "Oracle Fusion Middleware Helidon 3.0.0-3.2.20 and 4.0.0-4.5.4 contains an undefined vulnerability in helidon-dbclient-mongodb, letting unauthenticated network attackers access and partially disrupt data, exploit requires network access via HTTP with high complexity."
url: https://panop.io/threat-heartbeat/CVE-2026-83231/
---

# CVE-2026-83231 Oracle Fusion Middleware Helidon - Undefined

Oracle Fusion Middleware Helidon 3.0.0-3.2.20 and 4.0.0-4.5.4 contains an undefined vulnerability in helidon-dbclient-mongodb, letting unauthenticated network attackers access and partially disrupt data, exploit requires network access via HTTP with high complexity.

CVSS base score 7.0 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.28% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-83231)

## Details

Type

Undefined

Impact

Information Disclosure, Data Tampering, Denial Of Service

CVSS vector

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

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-284](https://cwe.mitre.org/data/definitions/284.html)

## Vendor fix

Update to the latest Helidon version beyond 4.5.4.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-83231](https://nvd.nist.gov/vuln/detail/CVE-2026-83231)
- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)