Description
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).
Published: 2026-08-18
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability in the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component, can be easily exploited by an unauthenticated attacker with network access via HTTP. The flaw allows the attacker to perform unauthorized updates, inserts or deletes on Helidon‑accessible data and to read a subset of that data. This represents an authorization bypass identified as CWE‑284, resulting in a loss of confidentiality and integrity for the affected data.

Affected Systems

Oracle Helidon versions 3.0.0 through 3.2.18 are affected. The vulnerability applies to all deployments of the Helidon Imperative Web Server component within that version range. No other vendors or products are reported as impacted.

Risk and Exploitability

The CVSS base score of 7.2 reflects a high severity with low complexity and no user interaction, while the attack vector is network‑based. The EPSS score of < 1% indicates a very low exploitation probability, and the vulnerability is not listed in the CISA KEV catalog. Although widespread exploitation remains uncertain, the potential for unauthorized data modification and read presents significant risk for exposed Helidon deployments.

Generated by OpenCVE AI on August 28, 2026 at 23:42 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to a patched Helidon release (e.g., 3.2.20 or later).
  • Restrict or disable unauthenticated HTTP access by configuring authentication or firewall rules for Helidon endpoints.
  • Ensure Helidon services are not exposed to the public Internet and limit inbound traffic to trusted networks.
  • Monitor Helidon logs and network traffic for unauthorized access attempts.

Generated by OpenCVE AI on August 28, 2026 at 23:42 UTC.

Tracking

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Advisories

No advisories yet.

History

Sat, 29 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
Title Authorization Bypass in Oracle Helidon Enabling Unauthorized Data Modification and Disclosure

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 3.2.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 3.0.0-3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).
CPEs cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*

Fri, 21 Aug 2026 03:00:00 +0000

Type Values Removed Values Added
Title Authorization Bypass in Oracle Helidon Enabling Unauthorized Data Modification and Disclosure

Thu, 20 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

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


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

Type Values Removed Values Added
Title Oracle Helidon Authorization Bypass Allows Unauthenticated Data Manipulation
Weaknesses CWE-284
CWE-287

Thu, 20 Aug 2026 02:15:00 +0000

Type Values Removed Values Added
Title Oracle Helidon Authorization Bypass Allows Unauthenticated Data Manipulation
Weaknesses CWE-284
CWE-287

Wed, 19 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated Web Access Enables Unauthorized Data Modification in Oracle Helidon
Weaknesses CWE-284
CWE-287

Wed, 19 Aug 2026 08:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated Web Access Enables Unauthorized Data Modification in Oracle Helidon
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 3.2.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).
First Time appeared Oracle
Oracle helidon
CPEs cpe:2.3:a:oracle:helidon:3.2.19:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle helidon
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-08-28T17:33:45.625Z

Reserved: 2026-08-13T18:41:45.882Z

Link: CVE-2026-73875

cve-icon Vulnrichment

Updated: 2026-08-20T18:11:09.360Z

cve-icon NVD

Status : Modified

Published: 2026-08-18T21:18:19.807

Modified: 2026-08-28T20:19:46.287

Link: CVE-2026-73875

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T23:45:03Z

Weaknesses