CVE-2026-73937

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4.4.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon and unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H).

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.oracle.com/security-alerts/cspuaug2026.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:oracle:helidon:4.5.0:*:*:*:*:*:*:*

History

22 Oct 2026, 17:09

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad en el producto Helidon de Oracle Fusion Middleware (componente: Servidor Web Imperativo). La versión compatible que está afectada es 4.5.0. Vulnerabilidad fácilmente explotable permite a un atacante no autenticado con acceso de red vía HTTP/2 comprometer Helidon. Ataques exitosos de esta vulnerabilidad pueden resultar en la capacidad no autorizada de causar un cuelgue o un fallo frecuentemente repetible (DoS completo) de Helidon y acceso de lectura no autorizado a un subconjunto de datos accesibles de Helidon. Puntuación Base CVSS 3.1 de 8.2 (Impactos en la Confidencialidad y Disponibilidad). Vector CVSS: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H).

Information

Published : 2026-08-18 21:18

Updated : 2026-10-22 17:09

NVD link : CVE-2026-73937

Mitre link : CVE-2026-73937

CVE.ORG link : CVE-2026-73937

JSON object : View

Products Affected

oracle

helidon

CWE

CWE-284

Improper Access Control

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