--- title: "CVE-2026-91563: Oracle Database Server OLAP - Remote Code Execution" description: "Oracle Database Server OLAP component 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3 contains a remote code execution caused by vulnerability exploitable by low privileged attackers with DBMS_AW privilege via Oracle Net, letting attackers take over Oracle OLAP." url: https://panop.io/threat-heartbeat/CVE-2026-91563/ --- # CVE-2026-91563 Oracle Database Server OLAP - Remote Code Execution Oracle Database Server OLAP component 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3 contains a remote code execution caused by vulnerability exploitable by low privileged attackers with DBMS\_AW privilege via Oracle Net, letting attackers take over Oracle OLAP. CVSS base score 8.8 /10 High CISA KEV Not listed Public exploit None known Authentication Required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-91563) ## Details Type Remote Code Execution Impact Remote Code Execution, Information Disclosure, Data Tampering, Denial Of Service CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Published 20 October 2026 Updated 21 October 2026 ## Vendor fix Update to the latest available Oracle Database Server version beyond 23.26.3. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-91563](https://nvd.nist.gov/vuln/detail/CVE-2026-91563) - [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)