---
id: CVE-2026-91609
title: 'Vulnerability in Oracle REST Data Services (component: Graph QL)'
summary: >-
  Vulnerability in Oracle REST Data Services (component: Graph QL).  Supported
  versions that are affected are 24.2.0-26.2.1. Easily exploitable vulnerability
  allows low privileged attacker with network access via HTTP to compromise
  Oracle …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle REST Data Services
affected:
  - oracle_rest_data_services >= 24.2.0 <= 26.2.1
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:26:38.338Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91609'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.719Z'
---

## Overview

Vulnerability in Oracle REST Data Services (component: Graph QL).  Supported versions that are affected are 24.2.0-26.2.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle REST Data Services.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle REST Data Services accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

## Affected

- `oracle_rest_data_services >= 24.2.0 <= 26.2.1`

## Remediation

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