---
id: CVE-2026-87359
title: >-
  Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware
  (component: Core)
summary: >-
  Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware
  (component: Core).  Supported versions that are affected are 12.2.1.4.0 and 
  14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker
  with net…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle Service Bus
affected:
  - oracle_service_bus 12.2.1.4.0
  - oracle_service_bus 14.1.2.0.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:24:16.877Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-87359'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.853Z'
---

## Overview

Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Service Bus.  Successful attacks of this vulnerability can result in takeover of Oracle Service Bus. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

## Affected

- `oracle_service_bus 12.2.1.4.0`
- `oracle_service_bus 14.1.2.0.0`

## Remediation

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