CVE-2026-87304

Analyzed Analyzed - Analysis Complete

Oracle Outside In Technology Unauthorized Data Access Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-11-04

Assigner: Oracle

Description

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. While the vulnerability is in Oracle Outside In Technology, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Outside In Technology accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-04

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-87304

EUVD

EUVD-2026-106345

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	outside_in_technology	8.5.8

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Outside In Technology version 8.5.8, part of Oracle Fusion Middleware. It allows an unauthenticated attacker to remotely access the system via HTTP and potentially gain unauthorized access to critical or all accessible data within the technology.

Detection Guidance

This vulnerability is in Oracle Outside In Technology version 8.5.8 and can be exploited via HTTP. Detection involves checking for the affected version on systems running Oracle Fusion Middleware. Use commands like 'rpm -qa | grep OutsideIn' on Linux or check installed programs via 'Programs and Features' on Windows to identify the version.

Impact Analysis

An attacker could exploit this to access sensitive data stored or processed by Oracle Outside In Technology. This may include confidential information, leading to data breaches or further attacks on connected systems.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face legal penalties, reputational damage, and loss of compliance certifications.

Mitigation Strategies

Immediately apply the latest security patches or updates provided by Oracle for Outside In Technology version 8.5.8. If patches are unavailable, consider disabling the affected component or restricting network access to it via firewalls or access controls.

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EPSS Chart

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