CVE-2026-83267 is a vulnerability in the Oracle BI Publisher component of Oracle Analytics, specifically in BI Publisher Security. It is easily exploitable by an attacker with low privileges who has network access via HTTP. The vulnerability allows unauthorized access to critical data and partial unauthorized modification (update, insert, delete) of data accessible by Oracle BI Publisher. The vulnerability has a CVSS 3.1 base score of 8.5, indicating high severity, with network attack vector, low attack complexity, low privileges required, no user interaction, and scope change. The confidentiality impact is high, integrity impact is low, and availability impact is none. Affected versions explicitly include 8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0.0. Oracle's September 2026 Critical Security Patch Update includes fixes for this vulnerability, and Oracle strongly recommends applying these patches without delay.

Successful exploitation can result in unauthorized access to all data accessible by Oracle BI Publisher, including critical data, and unauthorized update, insert, or delete operations on some of this data. This can compromise confidentiality and integrity of the data handled by Oracle BI Publisher. The vulnerability may also impact additional Oracle products due to scope change.

Oracle has released a Critical Security Patch Update in September 2026 that addresses this vulnerability. Customers should apply the official patches provided by Oracle promptly to remediate this issue. Oracle strongly recommends remaining on actively-supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.