Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket). Supported versions that are affected are 4.0.0-4.5.4. 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).
History

Sun, 20 Sep 2026 07:45:00 +0000

Type Values Removed Values Added
Title Helidon WebSocket Unauthenticated Endpoint Causes Resource Exhaustion Denial of Service

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 18 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Title Helidon WebSocket Component Allows Unauthenticated HTTP Clients to Trigger Partial Denial of Service
Weaknesses CWE-290

Wed, 16 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Title Helidon WebSocket Component Allows Unauthenticated HTTP Clients to Trigger Partial Denial of Service
Weaknesses CWE-290

Tue, 15 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket). Supported versions that are affected are 4.0.0-4.5.4. 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).
First Time appeared Oracle
Oracle helidon
CPEs cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle helidon
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published: 2026-09-15T20:05:45.414Z

Updated: 2026-09-18T16:13:57.381Z

Reserved: 2026-08-31T15:40:57.361Z

Link: CVE-2026-83480

cve-icon Vulnrichment

Updated: 2026-09-18T16:11:48.140Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-15T20:18:55.697

Modified: 2026-09-25T19:27:37.587

Link: CVE-2026-83480

cve-icon Redhat

No data.