CVE-2026-101583

Deferred Deferred - Pending Action

Unauthenticated Data Access in Oracle Helidon

Publication date: 2026-10-20

Last updated on: 2026-10-29

Assigner: Oracle

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-common-mapper). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Difficult to exploit 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 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 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-20

Last Modified

2026-10-29

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101583

EUVD

EUVD-2026-105991

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Helidon	4.0.0
Oracle Corporation	Helidon	27.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Fusion Middleware's Helidon product, specifically the helidon-common-mapper component. It impacts versions 4.0.0-4.5.5 and 27.0.0. The issue allows an unauthenticated attacker to remotely exploit it via HTTP, potentially leading to unauthorized data access, modification, or deletion, as well as partial denial of service.

Impact Analysis

If you use affected Helidon versions, an attacker could access, alter, or delete critical data without authentication. They could also read some data and cause partial service disruptions. The impact includes confidentiality, integrity, and availability risks.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection principles and HIPAA's security requirements. Non-compliance risks include legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update Helidon to a version not affected by this vulnerability (4.0.0-4.5.5 and 27.0.0 are vulnerable). Apply patches from Oracle as soon as they are available. Restrict network access to Helidon components via firewalls or network segmentation to limit exposure.

Hi! I’m here to help you understand CVE-2026-101583. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...