CVE-2026-91327
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Authentication Bypass in JD Edwards EnterpriseOne Tools

Publication date: 2026-10-20

Last updated on: 2026-10-28

Assigner: Oracle

Description
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Installation Security). Supported versions that are affected are 9.2.0.0-9.2.26.5. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in takeover of JD Edwards EnterpriseOne Tools. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

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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-2026-91327
EUVD
EUVD-2026-106581

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Oracle Corporation JD Edwards EnterpriseOne Tools 9.2.0.0

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Exploitability

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

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Executive Summary

This is a vulnerability in Oracle JD Edwards EnterpriseOne Tools (versions 9.2.0.0-9.2.26.5) where an unauthenticated attacker with access to the physical network segment can exploit it to take over the system. The attack requires proximity to the hardware but no user interaction. It has a CVSS score of 7.5, indicating high impact on confidentiality, integrity, and availability.

Detection Guidance

Detection requires identifying systems running vulnerable versions of JD Edwards EnterpriseOne Tools (9.2.0.0-9.2.26.5). Check installed versions via application logs or package managers. Network monitoring for unauthorized access attempts to the physical communication segment may also help.

Impact Analysis

If you use Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0-9.2.26.5, an attacker could gain full control of the system, leading to data theft, modification, or disruption of services. This requires physical network access but could result in complete system compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations using affected versions may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Apply the latest Oracle JD Edwards EnterpriseOne Tools patch to upgrade to a non-vulnerable version. Restrict physical and network access to the communication segment where the application executes. Monitor for suspicious activity.

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