CVE-2026-91309 in JD Edwards EnterpriseOne Tools
Summary
by MITRE • 10/21/2026
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Interoperability SEC). Supported versions that are affected are 9.2.0.0-9.2.26.5. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise JD Edwards EnterpriseOne Tools. 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 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Interoperability 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 is classified as a critical weakness in how the application handles authentication and access control for sensitive interoperability services. The core technical issue involves an improper restriction of functionality or data exposure that allows unauthenticated actors to bypass standard security mechanisms when interacting with the system over HTTPS connections. Although the vulnerability requires high complexity to exploit, indicating that specific conditions or precise timing may be necessary to trigger the flaw successfully, its accessibility via network protocols makes it a significant concern for organizations relying on JD Edwards for enterprise resource planning and business operations.
From an operational perspective, this vulnerability poses a severe risk to data confidentiality within the affected environment. An attacker who successfully exploits this weakness can gain unauthorized access to critical data stored or processed by the JD Edwards EnterpriseOne Tools application. The impact is not limited to minor information leakage; it extends to complete access to all data accessible through the tools interface. This level of compromise could lead to the exfiltration of sensitive business intelligence, financial records, customer personal identifiable information, and proprietary operational metrics. Such a breach would likely result in significant regulatory penalties under frameworks like GDPR or HIPAA if applicable, alongside substantial reputational damage and potential loss of competitive advantage due to exposed strategic data.
The technical nature of this flaw aligns with CWE-287, which describes Improper Authentication, as well as potentially CWE-613, Insufficient Session Expiration, depending on the specific mechanism by which access is granted without proper credentials. In terms of adversary behavior mapping according to MITRE ATT&CK, this vulnerability facilitates Initial Access and Credential Access phases, allowing an attacker to move laterally within a network or escalate privileges if other controls are weak. The CVSS 3.1 base score of 5.9 reflects the medium severity driven primarily by high confidentiality impact despite the high attack complexity and lack of required user interaction. This scoring indicates that while automated exploitation tools may not easily target this flaw, targeted attacks by skilled adversaries remain a viable threat vector.
To mitigate this risk, organizations must immediately apply the latest security patches provided by Oracle for JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5. It is imperative to verify that all instances of the Interoperability SEC component are updated to a version where this vulnerability has been remediated. In addition to patching, administrators should implement strict network segmentation policies to limit direct internet-facing access to JD Edwards servers wherever possible. Utilizing web application firewalls can help detect and block anomalous traffic patterns associated with exploitation attempts for authentication bypass vulnerabilities. Furthermore, enabling comprehensive logging and monitoring of access events related to the Interoperability SEC component will aid in early detection of any attempted unauthorized access activities. Regular security assessments and penetration testing should be conducted to identify similar weaknesses in other components of the JD Edwards ecosystem before they can be exploited by malicious actors seeking to compromise enterprise data integrity and confidentiality.