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CVE-2026-73892: 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 as well as unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon

0
Medium
VulnerabilityCVE-2026-73892cvecve-2026-73892
Published: 08/18/2026 (08/18/2026, 21:04:00 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Helidon

Description

CVE-2026-73892 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to perform unauthorized read, update, insert, or delete operations on some accessible data. The vulnerability affects the Imperative Web Server component of Helidon and has a CVSS 3.1 base score of 6.5, indicating a medium severity level. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update, which provides security patches for affected products.

CVSS v3.1

Score 6.5medium

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

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, 11:04:21 UTC

Technical Analysis

This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker with network access via HTTP to compromise the system, resulting in unauthorized read and write (update, insert, delete) access to some Helidon accessible data. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) indicates network attack vector, low attack complexity, no privileges or user interaction required, with limited confidentiality and integrity impact but no availability impact. The affected versions are 4.0.0 through 4.4.1 inclusive, and version 4.5.0. Oracle has addressed this vulnerability in its August 2026 Critical Security Patch Update, which includes patches for Helidon and many other Oracle products.

Potential Impact

Successful exploitation allows unauthorized attackers to read and modify some data accessible via Helidon without authentication. This could lead to data confidentiality and integrity breaches but does not affect availability. The vulnerability is considered medium severity with a CVSS score of 6.5.

Mitigation Recommendations

Oracle has released security patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users of affected Helidon versions (4.0.0 through 4.4.1 and 4.5.0) should apply the relevant patches promptly to remediate the vulnerability. Oracle strongly recommends staying on actively supported versions and applying security patches without delay. Refer to the official Oracle advisory at https://www.oracle.com/security-alerts/cspuaug2026.html for patch availability and installation instructions.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-13T18:41:45.884Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]

Threat ID: 6a84cce5c6e8be0332c3959b

Added to database: 08/18/2026, 21:21:41 UTC

Last enriched: 09/11/2026, 11:04:21 UTC

Last updated: 10/02/2026, 06:15:07 UTC

Views: 47

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