CVE-2026-91314 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).
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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 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 unauthenticated attacker who has already gained logon access to the underlying infrastructure where JD Edwards EnterpriseOne Tools executes to compromise the application itself. This distinction is crucial as it indicates that while remote network exploitation without prior authentication is not possible, any user with local system-level access can escalate privileges and take control of the enterprise software environment.
From a technical perspective, this vulnerability aligns closely with CWE-269, which describes Improper Privilege Management, specifically in contexts where an actor gains higher-level permissions than intended for their current state. The attack vector is classified as Local (AV:L) with Low Complexity (AC:L), meaning that the attacker does not need specialized conditions or complex setup to exploit the flaw once they have obtained initial access credentials. However, the requirement for User Interaction (UI:R) suggests that the exploitation may involve social engineering tactics or require a victim to perform an action such as clicking a malicious link, running a compromised script, or approving a deceptive installation process initiated by the attacker within the infrastructure. This human element serves as both a barrier and a potential vector depending on the security awareness of the personnel involved in managing the JD Edwards environment.
The operational impact of this vulnerability is severe, with a CVSS 3.1 Base Score of 7.8 indicating High severity. The successful exploitation leads to complete takeover of JD Edwards EnterpriseOne Tools, impacting Confidentiality, Integrity, and Availability equally. In practical terms, an attacker who compromises the installation security can access sensitive business data stored within the ERP system, alter financial records or operational workflows without detection, and disrupt service availability by locking out legitimate users or corrupting configuration files. This level of compromise undermines the fundamental trust in the enterprise application, potentially leading to significant financial loss, regulatory non-compliance, and reputational damage for the affected organization.
In terms of threat modeling, this vulnerability maps to MITRE ATT&CK techniques related to Privilege Escalation on Local Systems and Potential Remote Execution via Installed Software. Attackers often leverage such flaws after gaining a foothold in the network through phishing or other initial access vectors to move laterally and establish persistence within critical business applications. The ability to take over JD Edwards EnterpriseOne Tools allows for long-term unauthorized access, enabling data exfiltration over time or sabotage of mission-critical processes without immediate detection by standard security monitoring tools that may not inspect internal application logic deeply enough.
Mitigation strategies must focus on both technical controls and administrative procedures. Oracle has released patches to address this vulnerability in the specified versions; therefore, applying the latest available updates for JD Edwards EnterpriseOne Tools is the primary remediation step. Organizations should ensure their patch management processes are rigorous and timely, particularly for components handling installation security. Additionally, since exploitation requires local logon access, strict adherence to least privilege principles is essential. Administrators must limit who has direct login capabilities to servers hosting JD Edwards infrastructure, utilizing multi-factor authentication where possible and monitoring for anomalous login patterns. Regular audits of user permissions within the application layer can also help detect unauthorized changes that may indicate an ongoing exploitation attempt.
Furthermore, implementing robust endpoint detection and response solutions on systems running JD Edwards tools can provide visibility into suspicious activities associated with privilege escalation attempts. Security teams should review access logs regularly to identify any unapproved modifications to installation configurations or unexpected execution of administrative scripts. By combining timely patching with strong identity governance and continuous monitoring, organizations can significantly reduce the risk posed by this vulnerability and maintain the integrity of their enterprise resource planning infrastructure against local-based attacks that seek to compromise core business applications.