Oracle Helidon up to 4.5.5/27.0.0 helidon-common-mapper privileges management

Summaryinfo

A vulnerability classified as critical has been found in Oracle Helidon up to 4.5.5/27.0.0. This impacts an unknown function of the component helidon-common-mapper. This manipulation causes privileges management. The identification of this vulnerability is CVE-2026-101583. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Oracle Helidon up to 4.5.5/27.0.0. Affected by this vulnerability is some unknown processing of the component helidon-common-mapper. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-common-mapper). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized read access to a subset 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:L/I:H/A:L).

The advisory is shared at oracle.com. This vulnerability is known as CVE-2026-101583 since 09/28/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/21/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Oracle

Name

• Helidon

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5
• 27.0

License

• commercial

Website

• Vendor: https://www.oracle.com

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