CVE-2026-91315 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 unauthenticated attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of JD Edwards EnterpriseOne Tools. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
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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 version ranges 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 for their critical business operations. The core issue stems from an improper implementation of access controls during the installation or configuration phase, which allows an attacker who has already gained logon access to the underlying infrastructure where JD Edwards EnterpriseOne Tools executes to escalate privileges and compromise the application itself. This is not a remote network exploit but rather requires local or adjacent network access combined with valid user credentials on the host system, highlighting that while the initial foothold may be easier than full administrative takeover, it still demands specific environmental conditions to succeed.
From a technical perspective, this vulnerability aligns closely with CWE-269, which describes Improper Privilege Management, and more specifically CWE-78, the OS Command Injection category if the exploitation involves executing arbitrary system commands through misconfigured installation scripts or utilities. The attacker leverages their existing logon session to interact with insecurely configured tools that lack sufficient validation of inputs or proper separation of duties during setup processes. By manipulating these components, an unauthenticated actor who has obtained local access can bypass intended security restrictions. This often involves exploiting weak permissions on configuration files or executable binaries associated with the installation process, allowing the attacker to inject malicious payloads or alter critical settings without triggering standard audit logs or permission denials that would normally prevent such actions.
The operational impact of this vulnerability is severe, as indicated by a CVSS 3.1 Base Score of 7.8, classified as High severity. The vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reveals that while the attack requires local access and user interaction, it results in high impacts across confidentiality, integrity, and availability. Successful exploitation leads to a complete takeover of JD Edwards EnterpriseOne Tools, granting the attacker full control over the application environment. This means sensitive financial data, customer information, and proprietary business processes stored within the ERP system can be exfiltrated, altered, or destroyed. Furthermore, because JD Edwards often serves as the backbone for enterprise operations, compromising this tool can disrupt critical workflows, leading to significant downtime and reputational damage. The requirement for human interaction suggests that social engineering tactics might be employed to trick a legitimate user with local access into executing a malicious script or clicking on a deceptive link within the application interface, thereby facilitating the initial compromise step.
In terms of threat modeling, this vulnerability maps to MITRE ATT&CK techniques related to Privilege Escalation and Defense Evasion. Attackers may utilize T1068 Exploitation for Privilege Escalation by leveraging misconfigured installation utilities to gain higher-level access than their current credentials permit. Additionally, the need for user interaction places this within the realm of social engineering attacks where an adversary might disguise malicious code as a legitimate system update or configuration file. The persistence gained through such an exploit allows long-term unauthorized access, enabling lateral movement across the network if the compromised host is connected to other critical systems.
To mitigate these risks, organizations must immediately apply all available security patches provided by Oracle for JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5. It is crucial to verify that the patching process follows vendor guidelines strictly to ensure no residual misconfigurations remain. Beyond software updates, implementing strict least-privilege principles on all servers hosting JD Edwards components is essential. Administrators should restrict local logon rights to only those personnel who absolutely require it and enforce multi-factor authentication for any administrative accounts. Regular audits of installation scripts and configuration files can help detect unauthorized modifications early. Additionally, deploying endpoint detection and response solutions that monitor for anomalous behavior during software installation or configuration changes can provide an additional layer of defense against exploitation attempts. Security awareness training should also be conducted to educate staff on recognizing social engineering tactics aimed at tricking them into executing unverified scripts or commands within the enterprise environment.