Oracle Helidon helidon-dbclient-mongodb improper authorization

Summaryinfo

A vulnerability was found in Oracle Helidon. It has been declared as critical. The affected element is an unknown function of the component helidon-dbclient-mongodb. Such manipulation leads to improper authorization. This vulnerability is documented as CVE-2026-83231. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Oracle Helidon (version now known). It has been rated as critical. Affected by this issue is some unknown processing of the component helidon-dbclient-mongodb. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-dbclient-mongodb). Supported versions that are affected are 3.0.0-3.2.20 and 4.0.0-4.5.4. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L).

The advisory is available at oracle.com. This vulnerability is handled as CVE-2026-83231 since 08/31/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/16/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

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

Vendor

• Oracle

Name

• Helidon

License

• commercial

Website

• Vendor: https://www.oracle.com

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