---
id: CVE-2026-83439
title: >-
  Vulnerability in the Helidon product of Oracle Fusion Middleware (component:
  helidon-security-providers-idcs-mapper)
summary: >-
  Vulnerability in the Helidon product of Oracle Fusion Middleware (component:
  helidon-security-providers-idcs-mapper).  Supported versions that are affected
  are 3.0.0-3.2.20 and 4.0.0-4.5.4. Easily exploitable vulnerability allows low
  pri…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-284
vendor: Oracle Corporation
product: Helidon
affected:
  - Helidon >= 3.0.0 <= 3.2.20
  - Helidon >= 4.0.0 <= 4.5.4
published: '2026-09-15'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:17:01.740'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83439'
references:
  - url: 'https://www.oracle.com/security-alerts/cspusep2026.html'
    label: secalert_us@oracle.com
tags:
  - nvd
  - cve.org
epss: 0.0035
epssPercentile: 0.25928
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-18T18:15:16.833341Z'
ingestedAt: '2026-09-15T20:44:02.544Z'
---

## Overview

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-security-providers-idcs-mapper).  Supported versions that are affected are 3.0.0-3.2.20 and 4.0.0-4.5.4. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as  unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.