CVE-2026-91312 in JD Edwards EnterpriseOne Tools
Summary
by MITRE • 10/21/2026
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. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. While the vulnerability is in JD Edwards EnterpriseOne Tools, 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 JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Installation Security component of Oracle JD Edwards EnterpriseOne Tools, specifically affecting versions ranging from 9.2.0.0 through 9.2.26.5. This security flaw represents a significant risk to organizations relying on this enterprise resource planning platform because it allows for unauthorized access to critical data and potentially all accessible information within the system. The nature of this vulnerability is characterized by its ease of exploitation, which lowers the barrier for entry for malicious actors who have already gained a foothold in the network infrastructure where JD Edwards EnterpriseOne Tools operates.
From a technical perspective, the core issue stems from insufficient access control mechanisms during the installation or configuration phase of the software. While the initial vector requires low-privileged attacker credentials with valid logon capabilities to the underlying operating system or infrastructure hosting the application, the subsequent exploitation leads to a scope change that extends beyond the immediate component. This means that an adversary does not need high-level administrative privileges on the host machine to trigger the vulnerability; instead, standard user-level access is sufficient to compromise the integrity and confidentiality of the JD Edwards environment. The flaw likely involves improper validation or handling of installation parameters or security contexts, allowing a lower-privileged entity to escalate their influence over the application's data stores.
The operational impact of this vulnerability is severe due to its high confidentiality impact as indicated by the CVSS 3.1 base score of 6.5. Successful exploitation enables an attacker to exfiltrate sensitive business intelligence, financial records, customer information, and other proprietary data stored within JD Edwards EnterpriseOne Tools. Because attacks may significantly impact additional products beyond just the tools component, this vulnerability can serve as a pivot point for broader network compromise. The ability to access all accessible data implies that once inside, an attacker could map out further vulnerabilities or extract large volumes of structured data without triggering immediate alarms associated with high-privilege account usage.
In terms of industry standard classifications, this vulnerability aligns closely with CWE-269 Improper Privilege Management and CWE-862 Missing Authorization. The requirement for local logon places it within the lateral movement or initial access phases depending on how the attacker obtained those credentials, but the exploitation technique itself relates to privilege escalation via misconfigured installation security protocols. In the context of the MITRE ATT&CK framework, this behavior is consistent with techniques involving T1078 Valid Accounts and potentially T1539 Steal Web Session Cookie if session tokens are involved in maintaining access after the initial compromise. The scope change aspect highlights the interconnected nature of modern enterprise software suites where a flaw in one module can destabilize the security posture of integrated systems.
Mitigation strategies must focus on immediate patching and rigorous configuration management. Organizations running affected versions should apply the latest available patches from Oracle to address the installation security flaws directly. Until patches are applied, administrators should enforce strict network segmentation to limit lateral movement opportunities for low-privileged accounts that might attempt to exploit this vulnerability. Additionally, implementing multi-factor authentication for all infrastructure logons and monitoring for unusual data access patterns can help detect exploitation attempts early. Regular audits of user permissions within JD Edwards EnterpriseOne Tools are essential to ensure that no unnecessary privileges are granted to standard users who do not require administrative or elevated installation rights.