---
id: CVE-2026-91320
title: >-
  Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware
  (component: Oracle JDeveloper)
summary: >-
  Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware
  (component: Oracle JDeveloper).  Supported versions that are affected are
  12.2.1.4.0 and  14.1.2.0.0. Difficult to exploit vulnerability allows high
  privileged at…
severity: medium
cvss: 5.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle JDeveloper
affected:
  - oracle_jdeveloper 12.2.1.4.0
  - oracle_jdeveloper 14.1.2.0.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:25:17.759Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91320'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.800Z'
---

## Overview

Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: Oracle JDeveloper).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle JDeveloper executes to compromise Oracle JDeveloper.  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Oracle JDeveloper accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle JDeveloper. CVSS 3.1 Base Score 5.7 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H).

## Affected

- `oracle_jdeveloper 12.2.1.4.0`
- `oracle_jdeveloper 14.1.2.0.0`

## Remediation

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