CVE-2026-91563 [HIGH] – Vulnerability in the Oracle OLAP component of Oracle Database Server. Supported versions

Vulnerability in the Oracle OLAP component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Easily exploitable vulnerability allows low privileged attacker having DBMS_AW privilege with network access via Oracle Net to compromise Oracle OLAP. Successful attacks of this vulnerability can result in takeover of Oracle OLAP. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).