Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of this vulnerability can result in 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 6.5 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).
History

Thu, 20 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Title HTTP/2 Vulnerability in Oracle Helidon 4.5.0 Allows Data Disclosure and Partial Denial of Service

Wed, 19 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP/2 Vulnerability in Oracle Helidon 4.5.0 Enabling Partial Data Exfiltration and Denial of Service
Weaknesses CWE-730

Wed, 19 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 19 Aug 2026 06:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP/2 Vulnerability in Oracle Helidon 4.5.0 Enabling Partial Data Exfiltration and Denial of Service
Weaknesses CWE-284
CWE-730

Tue, 18 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of this vulnerability can result in 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 6.5 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).
First Time appeared Oracle
Oracle helidon
CPEs cpe:2.3:a:oracle:helidon:4.5.0:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle helidon
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published: 2026-08-18T21:04:02.212Z

Updated: 2026-08-19T12:55:05.425Z

Reserved: 2026-08-13T18:41:45.884Z

Link: CVE-2026-73896

cve-icon Vulnrichment

Updated: 2026-08-19T12:08:15.349Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-18T21:18:22.213

Modified: 2026-08-20T14:55:42.797

Link: CVE-2026-73896

cve-icon Redhat

No data.