CVE-2026-91503 Vulnerability in the VPD component of Oracle Database Server.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-91503?
CVE-2026-91503 is a high-severity vulnerability in Oracle Database Server, published on 20 Oct 2026.
Official description
Vulnerability in the VPD 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 Create Table privilege with network access via Oracle Net to compromise VPD. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all VPD accessible data as well as unauthorized access to critical data or complete access to all VPD accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
Weakness: CWE-284
Which versions are affected by CVE-2026-91503?
How do I fix CVE-2026-91503?
No fix has been published for CVE-2026-91503 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91503 being exploited?
There is no known exploitation of CVE-2026-91503 in the wild and no public exploit code.
Sources
Also known as GHSA-523r-r9q7-vcr2.