{"id":"CVE-2026-91563","title":"Vulnerability in the Oracle OLAP component of Oracle Database Server","summary":"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 pr…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Oracle Corporation","product":"Oracle OLAP","affected":["oracle_olap >= 19.3 <= 19.32","oracle_olap >= 21.3 <= 21.23","oracle_olap >= 23.4.0 <= 23.26.3"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T21:26:32.325Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-91563","references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","label":"Oracle Advisory"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T22:23:33.725Z","slug":"CVE-2026-91563","body":"## Overview\n\nVulnerability 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).\n\n## Affected\n\n- `oracle_olap >= 19.3 <= 19.32`\n- `oracle_olap >= 21.3 <= 21.23`\n- `oracle_olap >= 23.4.0 <= 23.26.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}