CVE-2026-83311 in BI Publisher
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: BI Platform Security). Supported versions that are affected are 8.2.0.0.0, 12.2.1.4.0 and 26.01.0.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via SOAP to compromise Oracle BI Publisher. While the vulnerability is in Oracle BI Publisher, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle BI Publisher accessible data as well as unauthorized update, insert or delete access to some of Oracle BI Publisher accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the BI Platform Security component of Oracle Analytics, specifically affecting Oracle BI Publisher versions including 8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0. This flaw represents a critical security deficiency that allows for unauthorized access to sensitive information stored within the reporting platform. The vulnerability is characterized by its ease of exploitation, requiring only low-privileged credentials and network connectivity via SOAP protocols to trigger. This accessibility significantly lowers the barrier for entry, enabling attackers who have already gained a foothold in the network or possess basic user accounts to escalate their privileges and access restricted resources without needing complex attack vectors or social engineering efforts.
From a technical perspective, the core issue involves an authentication bypass or improper authorization check within the SOAP interface handling mechanisms of BI Publisher. When a request is processed through this endpoint, the system fails to adequately verify whether the authenticated user has sufficient permissions for the specific data operation being requested. This logical flaw permits low-privileged users to execute commands that should be restricted to administrators or higher-level roles. The exploitation path relies on crafting specific SOAP messages that manipulate these authorization checks, allowing the attacker to interact with backend databases and reporting services in ways intended only for privileged accounts.
The operational impact of this vulnerability is severe due to its broad scope and high confidentiality implications. Successful exploitation results in unauthorized access to critical data, effectively compromising the integrity of the organization's business intelligence assets. Attackers can read sensitive reports, financial records, customer information, or proprietary analytics that are exposed through BI Publisher dashboards and scheduled jobs. Furthermore, the vulnerability allows for unauthorized updates, inserts, or deletes on accessible data sets. This means an attacker is not limited to passive eavesdropping but can actively alter historical data, inject false metrics into reports, or delete crucial records, thereby undermining trust in organizational decision-making processes based on these analytics.
A critical aspect of this vulnerability is the potential for scope change, where attacks targeting Oracle BI Publisher significantly impact additional products within the broader Oracle Analytics ecosystem. Because BI Publisher often integrates with other components such as Oracle Enterprise Manager, OBIEE dashboards, or underlying database schemas, compromising one area can lead to lateral movement across the platform. This interconnectedness amplifies the risk profile, turning a localized reporting flaw into a systemic security breach that affects multiple layers of the analytics infrastructure. The CVSS 3.1 base score of 8.5 reflects this high severity, driven primarily by High Confidentiality impact and Low Integrity impact, with no direct Availability impact noted in the vector but implied through potential data destruction capabilities.
In terms of industry standard classifications, this vulnerability aligns closely with CWE-269 Improper Privilege Management and CWE-306 Missing Authentication for Critical Function. The exploitation method via SOAP interfaces also correlates with ATT&CK techniques related to Initial Access using valid credentials and Lateral Movement through application layer protocols. Organizations must recognize that the presence of low-privileged network access is sufficient for compromise, making perimeter defenses alone inadequate if internal segmentation or least privilege principles are not strictly enforced within the BI environment.
Mitigation strategies should focus on immediate patching by applying the latest security updates provided by Oracle for the affected versions. Until patches can be deployed, administrators should restrict SOAP endpoint accessibility to trusted IP ranges using firewall rules and reverse proxy configurations. Implementing strict input validation and enforcing role-based access control checks at the application layer rather than relying solely on database-level permissions is essential. Additionally, enabling comprehensive audit logging for all BI Publisher activities will aid in detecting exploitation attempts post-incident. Regular security assessments focusing on API endpoints and SOAP services are recommended to identify similar logic flaws before they can be exploited by malicious actors seeking to compromise organizational data integrity.