CVE-2026-87334 in JDeveloper
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: ADF Faces). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle JDeveloper executes to compromise Oracle JDeveloper. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle JDeveloper accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/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 ADF Faces component of Oracle JDeveloper, a critical integrated development environment for building Java-based enterprise applications using Oracle Fusion Middleware. This security flaw affects specific supported versions, namely 12.2.1.4.0 and 14.1.2.0.0, indicating that even currently maintained software releases are susceptible to exploitation under certain conditions. The nature of this vulnerability is characterized by its requirement for local access, meaning an attacker must already have a valid user account on the infrastructure where Oracle JDeveloper is executing. This prerequisite significantly narrows the attack surface compared to remote code execution vulnerabilities but does not eliminate the risk, particularly in environments with shared development machines or compromised developer workstations.
The technical flaw allows a low-privileged attacker who has successfully logged into the system to compromise the integrity and confidentiality of the Oracle JDeveloper environment. While the vulnerability is described as easily exploitable, it relies on the principle that local users can often escalate their privileges through misconfigurations or insufficient isolation between application processes and underlying operating system resources. The absence of a requirement for user interaction simplifies the exploitation process, allowing an attacker to trigger the flaw without needing to deceive a developer into clicking malicious links or opening specific files manually. This automation potential increases the likelihood of successful attacks in scenarios where attackers have gained initial foothold through other means such as phishing or malware infection that results in local account access.
The operational impact of this vulnerability is primarily centered on data confidentiality rather than system availability or integrity, although unauthorized access to critical development artifacts can indirectly affect both. Successful exploitation enables the attacker to gain unauthorized access to sensitive data stored within Oracle JDeveloper projects, including source code, configuration files, database credentials, and proprietary business logic. In a professional software development lifecycle, such exposure could lead to intellectual property theft, reverse engineering of secure applications by competitors, or further lateral movement if hardcoded secrets are discovered. The CVSS 3.1 base score of 5.5 reflects this moderate severity, driven largely by the high impact on confidentiality while maintaining low impacts on integrity and availability. This scoring aligns with CWE-200, which categorizes information exposure vulnerabilities where sensitive data is accessible to unauthorized actors due to improper access controls or security misconfigurations in application components.
From a threat intelligence perspective, this vulnerability maps to ATT&CK techniques involving local privilege escalation or credential dumping if the accessed data includes authentication tokens or keys. Attackers leveraging this flaw would likely employ methods consistent with T1078 Valid Accounts or potentially T1552 Unsecured Credentials depending on how JDeveloper stores and manages sensitive configuration parameters. The lack of user interface interaction required for exploitation places it in a category where automated tools could be used to scan local systems for the presence of vulnerable Oracle components, making proactive detection essential.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary recommendation is to apply the latest security patches provided by Oracle for versions 12.2.1.4.0 and 14.1.2.0.0 as soon as they are available in official support channels. Organizations should verify their patch management processes ensure timely deployment of these updates across all development environments. Additionally, implementing strict access controls on the infrastructure hosting Oracle JDeveloper is crucial. This includes enforcing least privilege principles so that only essential personnel have local login capabilities to machines running the IDE. Multi-factor authentication for system logins and regular auditing of user accounts can reduce the risk of an attacker obtaining the necessary low-privileged credentials required to exploit this flaw. Furthermore, isolating development environments from production systems and restricting network access between them adds a layer of defense that limits the potential damage even if local compromise occurs.