CVE-2026-83423 in JDeveloper
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: Security Framework). 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 network access via HTTP to compromise Oracle JDeveloper. Successful attacks of this vulnerability can result in takeover of Oracle JDeveloper. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Security Framework component of Oracle JDeveloper, a prominent integrated development environment that is part of the broader Oracle Fusion Middleware suite. This flaw affects specific supported versions, namely 12.2.1.4.0 and 14.1.2.0.0, indicating that even currently maintained releases are susceptible to exploitation. The nature of this vulnerability allows for remote code execution or privilege escalation under conditions where an attacker possesses low-level privileges but has network access via the HTTP protocol. This specific vector suggests that the security boundary between unauthenticated or lightly authenticated users and system administrators is insufficiently enforced within the application's request handling mechanisms, allowing malicious actors to bypass standard authentication checks through crafted HTTP requests.
From a technical perspective, the vulnerability enables an attacker with low privileges to compromise the integrity of the Oracle JDeveloper installation by achieving full takeover of the application environment. This level of access implies that the flaw likely involves improper validation of user input or session management tokens within the security framework's processing logic. When exploited, this allows the adversary to execute arbitrary commands, modify configuration files, or manipulate data structures in a manner consistent with CWE-287 Improper Authentication or CWE-918 Server-Side Request Forgery depending on the specific mechanism of bypass. The ability to take over the application effectively neutralizes any security controls implemented by developers using JDeveloper for building secure applications, as the tool itself becomes an entry point for deeper network intrusion.
The operational impact of this vulnerability is severe, reflected in a CVSS 3.1 Base Score of 8.8 which denotes high severity across all three pillars of the cybersecurity triad: confidentiality, integrity, and availability. The attack vector being network-accessible with low complexity means that automated scanning tools or opportunistic attackers can exploit this flaw without requiring user interaction such as clicking a malicious link. Consequently, organizations relying on these versions for software development face significant risk of intellectual property theft through compromised source code repositories, unauthorized modification of application logic leading to integrity violations, and potential denial of service if the exploitation disrupts the development environment's stability. The lack of required user interface interaction further lowers the barrier to entry for attackers, increasing the likelihood of successful compromise in automated attack scenarios.
In alignment with industry standards, this vulnerability maps closely to MITRE ATT&CK techniques related to Initial Access and Privilege Escalation within application environments. Specifically, it aligns with CWE-287 regarding authentication bypasses and potentially CWE-94 Improper Control of Generation of Code which could lead to remote code execution if the framework processes untrusted data in a way that allows injection attacks against underlying system components. The high availability impact suggests that successful exploitation may also disrupt service continuity, impacting development workflows and potentially causing downtime for dependent systems if JDeveloper is integrated into continuous integration pipelines or used as part of a larger middleware infrastructure.
To mitigate this risk, immediate action should be taken to apply the latest security patches provided by Oracle for both version 12.2.1.4.0 and 14.1.2.0.0. Organizations must verify their inventory of JDeveloper installations and prioritize patching efforts on systems exposed to network traffic via HTTP. Additionally, implementing strict access controls such as Web Application Firewalls can help filter malicious HTTP requests that attempt to exploit this vulnerability before they reach the application server. It is also advisable to restrict administrative privileges within development environments and enforce multi-factor authentication for any remaining accessible interfaces until patches are fully deployed. Regular security audits and penetration testing focused on input validation in custom JDeveloper extensions or plugins should be conducted to ensure no secondary vulnerabilities exist that could compound this primary flaw.