Description
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. 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 access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
Published: 2026-08-18
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 28 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated Authentication Bypass in Oracle Helidon Imperative Web Server

Fri, 28 Aug 2026 05:00:00 +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 3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. 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 access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N). Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. 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 access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
CPEs cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*

Thu, 20 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated Authentication Bypass in Oracle Helidon Imperative Web Server

Thu, 20 Aug 2026 05:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Access Exposes Oracle Helidon Imperative Web Server to Full Administration

Wed, 19 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Access Exposes Oracle Helidon Imperative Web Server to Full Administration

Wed, 19 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated Remote Exploitation of Oracle Helidon Server Resulting in Data Modification
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 09:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated Remote Exploitation of Oracle Helidon Server Resulting in Data Modification
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 3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. 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 access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
First Time appeared Oracle
Oracle helidon
CPEs cpe:2.3:a:oracle:helidon:3.2.18:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle helidon
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-08-28T04:07:45.733Z

Reserved: 2026-08-13T18:41:45.880Z

Link: CVE-2026-73865

cve-icon Vulnrichment

Updated: 2026-08-19T14:27:29.325Z

cve-icon NVD

Status : Modified

Published: 2026-08-18T21:18:18.650

Modified: 2026-08-28T05:16:44.427

Link: CVE-2026-73865

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T20:30:08Z

Weaknesses