CVE-2026-101512

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RDBMS Component Unauthorized Data Access in Oracle Database Server

Publication date: 2026-10-20

Last updated on: 2026-11-06

Assigner: Oracle

Description

Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows low privileged attacker having None privilege with network access via HTTP to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all RDBMS accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

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Meta Information

Published

2026-10-20

Last Modified

2026-11-06

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101512

EUVD

EUVD-2026-105926

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle Database Server	23.4.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in the RDBMS component of Oracle Database Server affecting versions 23.4.0 to 23.26.3. It allows a low-privileged attacker with network access via HTTP to potentially access critical or all accessible data in the database.

Detection Guidance

This vulnerability affects Oracle Database Server versions 23.4.0 to 23.26.3. Detection requires checking the installed Oracle Database version and verifying if it falls within the vulnerable range. Use Oracle SQL queries like SELECT * FROM v$version to check the version. Ensure the database is patched to a version beyond 23.26.3.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive data stored in the Oracle Database Server, potentially leading to data breaches or loss of confidentiality.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate compliance requirements under GDPR, HIPAA, or other regulations that mandate strict data protection and access controls.

Mitigation Strategies

Apply the latest Oracle Database Server patches immediately to address the RDBMS component vulnerability. Ensure network access controls restrict HTTP access to only trusted sources. Review and limit privileges for low-privileged users to reduce attack surface.

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