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CVE-2026-73914: 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. in Oracle Corporation Helidon

0
Medium
VulnerabilityCVE-2026-73914cvecve-2026-73914
Published: 08/18/2026 (08/18/2026, 21:04:08 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Helidon

Description

CVE-2026-73914 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some Helidon data and cause a partial denial of service. The vulnerability has a CVSS 3.1 base score of 6.5, indicating medium severity with impacts on confidentiality and availability.

CVSS v3.1

Score 6.5medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected software

Oracle Corporation

Helidon

Affected versions
>=4.0.0 <=4.4.1
io.helidon/helidon
pkg:maven/io.helidon/helidon
Affected versions
=4.5.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 10:48:46 UTC

Technical Analysis

This vulnerability affects the Helidon product within Oracle Fusion Middleware, specifically the Imperative Web Server component. It is exploitable remotely without authentication over HTTP. Successful exploitation results in unauthorized read access to a subset of data accessible by Helidon and the ability to cause a partial denial of service. The CVSS vector indicates low attack complexity, no privileges required, and no user interaction needed, with impacts on confidentiality (low) and availability (low).

Potential Impact

An attacker can remotely access some Helidon data without authorization and cause a partial denial of service, potentially disrupting service availability. There is no impact on integrity reported. The vulnerability affects confidentiality and availability but not integrity.

Mitigation Recommendations

Oracle has released security patches addressing this vulnerability as part of their August 2026 Critical Security Patch Update. Users are strongly advised to apply the available patches promptly to remediate this issue. The vendor advisory recommends staying on actively supported versions and applying patches without delay. Patch availability details can be found in the Oracle advisory linked in the source. No indication that the vulnerability is already mitigated without patching.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-13T18:41:45.888Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]

Threat ID: 6a84ccebc6e8be0332c396e4

Added to database: 08/18/2026, 21:21:47 UTC

Last enriched: 09/11/2026, 10:48:46 UTC

Last updated: 10/03/2026, 02:46:06 UTC

Views: 72

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