CVE-2026-87393

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Outside In Technology

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. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

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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-2026-87393

EUVD

EUVD-2026-106434

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. It allows an unauthenticated attacker to cause a denial of service (DOS) via HTTP network access. The attack requires user interaction and can repeatedly crash the system.

Detection Guidance

Detection of CVE-2026-87393 requires checking for Oracle Outside In Technology version 8.5.8. Verify installed versions using Oracle's documentation or system inventory tools. Monitor network traffic for HTTP requests targeting vulnerable components. Check for crashes or hangs in Oracle Outside In Technology processes as potential indicators of exploitation.

Impact Analysis

An attacker could exploit this to make Oracle Outside In Technology unavailable, causing service disruptions. This may lead to downtime for systems relying on this technology for document processing.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in Oracle Outside In Technology, leading to system unavailability. For GDPR, this could impact data processing operations requiring availability. For HIPAA, it may disrupt access to protected health information systems. However, specific compliance impacts depend on system configuration and use case.

Mitigation Strategies

Apply the latest security patches from Oracle for Outside In Technology version 8.5.8. Disable HTTP access to the affected component if not required. Monitor network traffic for unusual patterns targeting the Oracle Outside In Technology service.

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EPSS Chart

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