CVE-2026-91266 in JD Edwards EnterpriseOne Tools
Summary
by MITRE • 10/21/2026
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Monitoring and Diagnostics SEC). 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 creation, deletion or modification access to critical data or all JD Edwards EnterpriseOne Tools accessible data as well as unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 8.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Monitoring and Diagnostics SEC component of Oracle JD Edwards EnterpriseOne Tools, specifically affecting supported versions ranging from 9.2.0.0 through 9.2.26.5. This security flaw represents a significant risk to enterprise environments relying on this platform for business process management and data analytics. The core technical issue allows an attacker with low privileges who has successfully authenticated to the infrastructure hosting JD Edwards EnterpriseOne Tools to compromise the application itself. Unlike many vulnerabilities that require high-level administrative access or complex exploitation chains, this defect can be leveraged by users possessing only basic logon credentials, thereby lowering the barrier for entry significantly within a compromised network segment where such services are hosted.
The operational impact of this vulnerability is severe due to its potential for scope change. Although the technical flaw is localized to JD Edwards EnterpriseOne Tools, successful exploitation can lead to broader consequences across additional products integrated with or dependent on the platform. This lateral movement capability means that compromising a single instance could serve as a pivot point for attacking adjacent systems within the enterprise architecture. The primary risks involve unauthorized creation, deletion, or modification of critical data stored within the system. Furthermore, attackers may gain complete access to all JD Edwards EnterpriseOne Tools accessible data, leading to substantial breaches in confidentiality and integrity. While availability is not directly impacted according to the base score, the loss of trust in data accuracy and existence poses a critical threat to business continuity and regulatory compliance.
From a classification perspective, this vulnerability aligns with CWE-269 Improper Privilege Management or potentially CWE-732 Incorrect Permission Assignment for Critical Resource, depending on whether the flaw stems from insufficient checks during privilege escalation or misconfigured access controls within the monitoring module. In terms of offensive security frameworks, this behavior is consistent with MITRE ATT&CK technique T1078 Valid Accounts, as it relies on legitimate credentials to gain unauthorized access, and potentially T1530 Data from Cloud Storage if the accessed data resides in external repositories linked by the tool. The CVSS 3.1 base score of 8.4 reflects high impacts on confidentiality and integrity, driven by a local attack vector with low complexity and no user interaction required once initial authentication is achieved.
Mitigation strategies must prioritize immediate patching to the latest supported version that resolves this specific flaw within the Monitoring and Diagnostics SEC component. Organizations should also implement strict network segmentation to isolate JD Edwards infrastructure from general corporate networks, limiting the ability of a low-privileged attacker on adjacent systems to reach the vulnerable service. Additionally, enforcing multi-factor authentication for all accounts with access to the platform can mitigate the risk associated with credential theft or misuse. Regular auditing of user permissions and monitoring for anomalous data modification patterns are essential defensive measures to detect potential exploitation attempts before significant damage occurs.