Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-common-concurrency-limits). 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 update, insert or delete access to some 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 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Oracle Corporation Helidon affected
Version Status Constraints
4.0.0 affected ≤ 4.5.5
27.0.0 affected —

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Project Subscriptions

Vendors Products
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Helidon Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.oracle.com/security-alerts/cpuoct2026.html cve-icon cve-icon
History

Wed, 21 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Title Helidon Unauthenticated HTTP Vulnerability Leading to Data Modification and Partial Denial of Service
Weaknesses CWE-284

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-common-concurrency-limits). 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 update, insert or delete access to some 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 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:N/I:L/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-20T21:21:36.553Z

Reserved: 2026-09-28T15:40:09.492Z

Link: CVE-2026-101569

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T22:18:09.053

Modified: 2026-10-20T22:18:09.053

Link: CVE-2026-101569

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T00:00:13Z

Weaknesses