CVE-2026-91563

HighCVSS 8.8/10Last modified Oct 26, 2026

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).

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-269

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Oracle Corporation	Oracle OLAP	>= 19.3, <= 19.32; >= 21.3, <= 21.23; >= 23.4.0, <= 23.26.3

References

https://www.oracle.com/security-alerts/cpuoct2026.html

Timeline

Published: Oct 20, 2026
Last modified: Oct 26, 2026
NVD status: Awaiting Analysis

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