Description
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 low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
Published: 2026-08-18
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Vulnerability in the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component, allows a low‑privileged attacker with network access via HTTP to compromise the affected versions (4.0.0-4.4.1). Successful exploitation enables unauthorized update, insert or delete access to some Helidon‑accessible data and unauthorized read access to a subset of Helidon‑accessible data. This impacts confidentiality and integrity of data exposed through Helidon.

Affected Systems

Helidon versions 4.0.0 through 4.4.1, part of Oracle Fusion Middleware's Imperative Web Server component, are affected by this vulnerability. The component in question is included in Oracle's Helidon product line.

Risk and Exploitability

The CVSS v3.1 base score of 5.4 indicates moderate risk, with an AV:N and low privilege required (PR:L) but no user interface requirement. EPSS score of < 1% and the vulnerability is not listed in the CISA KEV catalog. Attackers need only HTTP network access to a Helidon instance and can exploit the flaw to gain unauthorized read and write capabilities to a subset of the server’s data.

Generated by OpenCVE AI on August 28, 2026 at 21:43 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Oracle Helidon to a non‑affected version or apply any official security patch that addresses the unauthorized access flaw
  • Restrict network access to the Helidon server by configuring firewalls, VPNs, or network segmentation to limit exposure to trusted hosts
  • Enforce strict authentication and role‑based access control to ensure that only authorized users can perform data modification or read operations

Generated by OpenCVE AI on August 28, 2026 at 21:43 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 28 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Title Unauthorized Data Modification and Read via Low‑Privileged HTTP Access in Oracle Helidon

Fri, 28 Aug 2026 19:45:00 +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 low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N). 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 low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
CPEs cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*

Thu, 20 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
Title Helidon 4.5.0 Vulnerability Allows Unauthorized Data Modification and Read via HTTP

Thu, 20 Aug 2026 07:15:00 +0000

Type Values Removed Values Added
Title Helidon 4.5.0 Vulnerability Allows Unauthorized Data Modification and Read via HTTP

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

Type Values Removed Values Added
Title Helidon Unauthorized Data Access via HTTP

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

Type Values Removed Values Added
Metrics ssvc

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

Wed, 19 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
Title Helidon Unauthorized Data Access via HTTP
Weaknesses CWE-284

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 low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
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': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Subscriptions

Oracle Helidon
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-08-28T18:12:49.500Z

Reserved: 2026-08-13T18:41:45.888Z

Link: CVE-2026-73913

cve-icon Vulnrichment

Updated: 2026-08-19T14:01:33.944Z

cve-icon NVD

Status : Modified

Published: 2026-08-18T21:18:24.143

Modified: 2026-08-28T20:19:50.670

Link: CVE-2026-73913

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T21:45:03Z

Weaknesses