Oracle Database Server up to 23.26.2 RDBMS privileges management

Summaryinfo

A vulnerability described as very critical has been identified in Oracle Database Server up to 23.26.2. This issue affects some unknown processing of the component RDBMS. Such manipulation leads to privileges management. This vulnerability is documented as CVE-2026-47046. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Oracle Database Server up to 23.26.2. It has been rated as very critical. Affected by this issue is an unknown code block of the component RDBMS. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS as well as unauthorized update, insert or delete access to some of RDBMS accessible data. CVSS 3.1 Base Score 8.2 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H).

The advisory is shared for download at oracle.com. This vulnerability is handled as CVE-2026-47046 since 05/18/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 08/08/2026). The MITRE ATT&CK project declares the attack technique as T1068.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• Database Server

Version

• 23.26.0
• 23.26.1
• 23.26.2

License

• commercial

Website

• Vendor: https://www.oracle.com

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