CVE-2026-73930
CriticalCVSS 9.9Summary
A vulnerability in Oracle Fusion Middleware's Helidon product (Imperative Web Server component) version 4.5.3 allows an unauthenticated attacker to compromise Helidon via HTTP, leading to unauthorized data modification, partial data access, and partial denial of service. Scope change may impact additional products.
Risk Assessment
An attacker could unauthorizedly create, delete, or modify data, access a subset of data, and cause partial service unavailability, potentially disrupting organizational operations.
Recommendation
Immediately upgrade Helidon to a patched version. Also monitor HTTP traffic and restrict access to the service.
Original NVD description (English source)
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. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L).