CVE-2026-83269 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 unauthenticated attacker with network access via HTTP to compromise Oracle BI Publisher. Successful attacks of this vulnerability can result in takeover of Oracle BI Publisher. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/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 BI Platform Security component of Oracle Analytics, specifically affecting the Oracle BI Publisher product across supported 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 fundamentally undermines the authentication mechanisms governing access to the application infrastructure. The nature of this vulnerability allows for exploitation by an unauthenticated attacker who possesses network connectivity via HTTP to the target system. Because no prior credentials or user interaction are required, the barrier to entry is exceptionally low, enabling remote code execution or full administrative takeover with minimal effort from a malicious actor positioned on the same network segment or accessible over the internet if exposed directly.
From a technical perspective, this vulnerability aligns closely with CWE-287, which describes Improper Authentication, and potentially CWE-306 for Missing Authentication for Critical Function. The absence of adequate verification processes allows an adversary to bypass security controls entirely, effectively treating protected resources as public. This lack of access control is further contextualized within the MITRE ATT&CK framework under techniques such as T1078 Valid Accounts if credentials are later harvested or T1190 Exploit Public-Facing Application, highlighting how attackers leverage exposed services to gain initial footholds in enterprise environments. The severity of this flaw is quantified by a CVSS 3.1 Base Score of 9.8, indicating a Critical level risk due to its high impact on confidentiality, integrity, and availability.
The operational impact of successful exploitation is severe, resulting in the complete takeover of Oracle BI Publisher. An attacker gaining control over this platform can manipulate reports, exfiltrate sensitive business intelligence data, alter system configurations, or use the compromised server as a pivot point for further lateral movement within the corporate network. The high availability and integrity impacts mean that not only is confidential information at risk of disclosure, but also the reliability of critical reporting services and the trustworthiness of generated analytics are compromised. This can lead to significant financial loss, regulatory non-compliance, and reputational damage depending on the sensitivity of the data processed by BI Publisher.
Mitigation strategies must prioritize immediate remediation through vendor-provided patches or updates that address the specific authentication bypass flaw in the affected versions. Organizations should ensure that all instances of Oracle Analytics are updated to a version where this vulnerability is resolved. In addition to patching, it is imperative to enforce strict network segmentation and firewall rules to restrict HTTP access to BI Publisher components only from trusted IP ranges. Implementing Web Application Firewalls with robust rule sets can also help detect and block exploitation attempts by identifying anomalous request patterns associated with authentication bypass attacks. Regular security audits and penetration testing should be conducted to verify that no unauthenticated endpoints remain exposed, thereby reducing the attack surface available to potential adversaries seeking to compromise critical business intelligence infrastructure.