CVE-2026-91563 Vulnerability in the Oracle OLAP component of Oracle Database Server.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-91563?
CVE-2026-91563 is a high-severity vulnerability in Oracle OLAP, published on 20 Oct 2026.
Official 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).
Weakness: CWE-269
Which versions are affected by CVE-2026-91563?
How do I fix CVE-2026-91563?
No fix has been published for CVE-2026-91563 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91563 being exploited?
There is no known exploitation of CVE-2026-91563 in the wild and no public exploit code.
Sources
Also known as GHSA-79vg-6vp5-m284.