8.8 High

CVE-2026-91563 Vulnerability in the Oracle OLAP component of Oracle Database Server

Description

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).

Affected products and versions

Product	Affected versions	Fixed in
Oracle OLAP 23.4	23.4.0 → 23.26.3	No fix stated
Oracle OLAP 21.3	21.3 → 21.23	No fix stated
Oracle OLAP 19.3	19.3 → 19.32	No fix stated

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www.cveye.io/en/cve/CVE-2026-91563

Timeline

Published October 20, 2026
Last modified October 26, 2026

References

Oracle Advisory www.oracle.com

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