Description
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-websocket). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP 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).
Published: 2026-10-20
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
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Remediation

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History

Thu, 29 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

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


Wed, 21 Oct 2026 01:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Access Enables Partial Data Exfiltration and Denial of Service in Oracle Helidon
Weaknesses CWE-200
CWE-269
CWE-770

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-websocket). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP 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:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:helidon:27.0.0:*:*:*:*:*:*:*
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:

Updated: 2026-10-29T01:46:08.121Z

Reserved: 2026-09-28T15:40:09.493Z

Link: CVE-2026-101584

cve-icon Vulnrichment

Updated: 2026-10-29T01:46:04.083Z

cve-icon NVD

Status : Deferred

Published: 2026-10-20T22:18:11.800

Modified: 2026-10-29T02:16:44.800

Link: CVE-2026-101584

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T23:45:12Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-269

    Improper Privilege Management

  • CWE-400

    Uncontrolled Resource Consumption

  • CWE-770

    Allocation of Resources Without Limits or Throttling