Description
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webserver-http2). Supported versions that are affected are 4.0.0-4.5.5. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
Published: 2026-10-20
Score: 3.7 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 29 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
Title Helidon Web Server HTTP/2 Resource Exhaustion Vulnerability

Thu, 29 Oct 2026 04:15:00 +0000

Type Values Removed Values Added
Title Helidon Web Server HTTP/2 Vulnerability Allows Partial Denial of Service
Weaknesses CWE-770

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

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

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


Wed, 21 Oct 2026 05:30:00 +0000

Type Values Removed Values Added
Title Helidon Web Server HTTP/2 Vulnerability Allows Partial Denial of Service
Weaknesses 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-webserver-http2). Supported versions that are affected are 4.0.0-4.5.5. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
First Time appeared Oracle
Oracle helidon
CPEs cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle helidon
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-29T01:52:02.373Z

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

Link: CVE-2026-101570

cve-icon Vulnrichment

Updated: 2026-10-29T01:48:12.701Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:10.187

Modified: 2026-10-29T02:16:44.420

Link: CVE-2026-101570

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T06:00:16Z

Weaknesses