CVE-2026-83129 is a vulnerability in the Oracle Sales product of Oracle E-Business Suite (component: Internal Operations) affecting versions 12.2.3 through 12.2.15. It allows a low-privileged attacker with network access via HTTP to compromise Oracle Sales, potentially resulting in unauthorized access to critical data. The vulnerability has a CVSS 3.1 base score of 7.7, indicating high severity, with confidentiality impact but no integrity or availability impact. Oracle has included a fix for this vulnerability in its September 2026 Critical Security Patch Update.