---
id: CVE-2026-91417
title: >-
  Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product
  of Oracle Java SE (component: CORBA)
summary: >-
  Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product
  of Oracle Java SE (component: CORBA).  Supported versions that are affected
  are Oracle Java SE: 8u503 and  8u503-perf; Oracle GraalVM Enterprise Edition:
  21.3…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle Java SE
affected:
  - oracle_java_se 8u503
  - oracle_java_se 8u503-perf
  - oracle_graalvm_enterprise_edition 21.3.19.1.1
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:25:51.341Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91417'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.762Z'
---

## Overview

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: CORBA).  Supported versions that are affected are Oracle Java SE: 8u503 and  8u503-perf; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition.  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

## Affected

- `oracle_java_se 8u503`
- `oracle_java_se 8u503-perf`
- `oracle_graalvm_enterprise_edition 21.3.19.1.1`

## Remediation

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