Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 1.4.20. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

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Vendors Products
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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Thu, 20 Aug 2026 02:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Remote Code Execution in Oracle Helidon 1.4.20

Wed, 19 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Title Helidon Web Server Remote Code Execution via Unauthenticated HTTP Access (Version 1.4.20)
Weaknesses CWE-287

Wed, 19 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 19 Aug 2026 07:00:00 +0000

Type Values Removed Values Added
Title Helidon Web Server Remote Code Execution via Unauthenticated HTTP Access (Version 1.4.20)
Weaknesses CWE-284
CWE-287

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 1.4.20. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
First Time appeared Oracle
Oracle helidon
CPEs cpe:2.3:a:oracle:helidon:1.4.20:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle helidon
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-08-19T14:41:24.854Z

Reserved: 2026-08-13T18:41:45.889Z

Link: CVE-2026-73921

cve-icon Vulnrichment

Updated: 2026-08-19T14:04:17.904Z

cve-icon NVD

Status : Received

Published: 2026-08-18T21:18:25.087

Modified: 2026-08-19T15:18:05.403

Link: CVE-2026-73921

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T01:45:03Z

Weaknesses