CVE-2026-83345 in XML Gateway
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle XML Gateway product of Oracle E-Business Suite (component: Install). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle XML Gateway. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle XML Gateway accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle XML Gateway. CVSS 3.1 Base Score 7.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Oracle XML Gateway component of Oracle E-Business Suite, specifically affecting installation procedures and configurations in versions ranging from 12.2.3 through 12.2.15. This security flaw is classified as an install-time or configuration-based weakness that persists into runtime operations, allowing for exploitation by attackers who possess low-level privileges but have network access via the HTTP protocol. The core technical issue stems from insufficient validation of input data during the installation and initialization phases, which leaves critical system resources exposed to unauthorized manipulation. This misconfiguration effectively lowers the barrier for entry, enabling a user with basic authenticated credentials to interact directly with sensitive backend services without requiring elevated administrative rights or complex social engineering tactics.
From an operational perspective, the impact of this vulnerability is significant due to its dual nature affecting both confidentiality and availability. Successful exploitation allows an attacker to bypass standard access controls, leading to unauthorized retrieval of critical business data stored within the Oracle XML Gateway environment. This represents a severe breach of data integrity and privacy, potentially exposing proprietary information, customer records, or financial transactions depending on the specific implementation of the E-Business Suite. Furthermore, the vulnerability permits actions that can disrupt normal system operations, resulting in a partial denial of service. By triggering resource exhaustion or causing critical processes to fail, an attacker can degrade the performance of the Oracle XML Gateway, thereby impacting business continuity and preventing legitimate users from accessing essential integration services.
The technical classification of this flaw aligns with CWE-284 Improper Access Control, as it involves a failure in enforcing proper restrictions on authenticated users regarding access to system resources. Additionally, the exploitation vector relates to CWE-798 Use of Hard-coded Credentials or CWE-15 External Configuration Error if the vulnerability arises from default settings left unchanged during installation. In terms of offensive security frameworks, this activity maps to ATT&CK technique T1078 Valid Accounts, where attackers leverage legitimate credentials to gain access, and potentially T1496 Resource Hijacking if the denial-of-service aspect involves consuming excessive system resources. The CVSS 3.1 base score of 7.1 reflects a High severity rating, driven primarily by the high impact on confidentiality (C:H) and low impact on availability (A:L), with no direct integrity compromise noted in the vector but implied through unauthorized data access capabilities.
Mitigation strategies must focus on both immediate remediation and long-term hardening of the Oracle E-Business Suite environment. The primary recommendation is to apply the latest security patches provided by Oracle, which address the specific flaws within the XML Gateway installation routines. Organizations should ensure that all supported versions are updated to a patched release outside the affected 12.2.3-12.2.15 range or have received backported fixes for these components. Beyond patching, it is critical to enforce strict access control policies by adhering to the principle of least privilege. Administrators should review user roles and ensure that low-privileged accounts do not possess unnecessary permissions related to XML Gateway configuration or data retrieval functions. Network segmentation also plays a vital role in limiting exposure; restricting HTTP access to only trusted IP ranges can reduce the attack surface available to potential adversaries. Regular audits of installed components and verification of default configurations against security benchmarks are essential practices to prevent similar vulnerabilities from being exploited in the future.