CVE-2026-91339

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Unauthorized Data Access in Oracle E-Business iSupport

Publication date: 2026-10-20

Last updated on: 2026-10-28

Assigner: Oracle

Description

Vulnerability in the iSupport product of Oracle E-Business Suite (component: Service Requests). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise iSupport. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all iSupport 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).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-28

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91339

EUVD

EUVD-2026-106593

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	iSupport	12.2.3

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This is a vulnerability in the iSupport product of Oracle E-Business Suite affecting versions 12.2.3 to 12.2.15. It allows a low-privileged attacker with network access via HTTP to compromise iSupport. Successful exploitation can lead to unauthorized access to critical data or full access to all data accessible through iSupport.

Detection Guidance

Detection of this vulnerability requires checking for vulnerable versions of Oracle E-Business Suite iSupport (12.2.3-12.2.15). Review installed versions of the component and verify if any are within the affected range. Check Oracle's security advisories for patches or updates.

Impact Analysis

The vulnerability can result in unauthorized access to sensitive data or complete access to all data accessible via iSupport. This may lead to data breaches, loss of confidential information, or further exploitation of affected systems.

Compliance Impact

This vulnerability could lead to non-compliance with regulations like GDPR or HIPAA due to unauthorized data access. Organizations may face legal penalties, reputational damage, and loss of customer trust if sensitive data is compromised.

Mitigation Strategies

Apply the latest Oracle E-Business Suite patches for iSupport versions 12.2.3-12.2.15. Restrict network access to HTTP ports for iSupport. Monitor for unauthorized access attempts to critical data.

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EPSS Chart

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