Oracle Helidon 4.5.3 Imperative Web resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, was found in Oracle Helidon 4.5.3. This issue affects some unknown processing of the component Imperative Web. Such manipulation leads to resource consumption. This vulnerability is listed as CVE-2026-73932. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Oracle Helidon 4.5.3 and classified as problematic. Affected by this issue is some unknown functionality of the component Imperative Web. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

The advisory is available at oracle.com. This vulnerability is handled as CVE-2026-73932 since 08/13/2026. 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 $0-$5k at the moment (estimation calculated on 08/19/2026). This vulnerability is assigned to T1499 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

Version

• 4.5.3

License

• commercial

Website

• Vendor: https://www.oracle.com

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