CVE-2026-83306 in JDeveloper
Summary
by MITRE • 09/15/2026
Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: Resource Catalog Services). 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 Resource Catalog Services component of Oracle JDeveloper, a key part of the Oracle Fusion Middleware suite affecting versions 12.2.1.4.0 and 14.1.2.0.0. This flaw represents a critical security deficiency that allows for unauthorized access and potential system compromise under specific conditions. The vulnerability is characterized by its ease of exploitation, requiring only low-privileged credentials and network connectivity via the HTTP protocol to initiate an attack vector against the target environment.
From a technical perspective, the core issue lies in insufficient validation or authentication mechanisms within the Resource Catalog Services module. This architectural weakness enables an attacker who has already obtained basic user privileges on the system to escalate their access significantly. By leveraging this flaw through standard web-based interactions, the attacker can manipulate internal processes and data structures that are not intended for public or low-level user interaction. The absence of proper security controls in this specific service component creates a pathway for malicious actors to bypass expected permission boundaries, effectively treating restricted resources as accessible entities.
The operational impact of successfully exploiting this vulnerability is severe, leading to the complete takeover of Oracle JDeveloper instances running the affected versions. This level of compromise grants the attacker extensive control over the development environment and potentially any connected systems or data managed by the middleware. The high severity rating reflects the broad scope of damage possible, encompassing confidentiality breaches where sensitive project code or configuration details are exposed, integrity violations allowing for unauthorized modification of application artifacts, and availability disruptions that can halt development workflows or production deployments dependent on these services.
In terms of industry-standard classification frameworks, this vulnerability aligns with CWE-287 Improper Authentication, as the core failure involves bypassing expected access controls through insufficient verification of user privileges. Furthermore, it maps to ATT&CK technique T1078 Valid Accounts, where attackers leverage legitimate credentials that have been compromised or are inherently weak due to poor privilege management. The network-based nature of the attack via HTTP also relates to CWE-352 Cross-Site Request Forgery if the exploitation involves tricking a user into performing unintended actions, though the primary vector described suggests direct authentication bypass rather than session hijacking.
Mitigation strategies must prioritize immediate patching and access control hardening. Organizations should apply the latest security patches provided by Oracle to update JDeveloper installations to versions where this flaw has been remediated. In environments where updating is not immediately feasible, implementing strict network segmentation can limit exposure by restricting HTTP access to the Resource Catalog Services component only from trusted internal networks with robust monitoring capabilities. Additionally, enforcing multi-factor authentication and adhering to the principle of least privilege for all user accounts interacting with JDeveloper services will reduce the attack surface available to low-privileged attackers attempting to exploit this vulnerability.