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CVE-2026-73901: Difficult to exploit 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-2026-73901cvecve-2026-73901
Published: 08/18/2026 (08/18/2026, 21:04:03 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Helidon

Description

CVE-2026-73901 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.5.1 that allows an unauthenticated attacker with network access via HTTP to perform unauthorized read and write operations on some accessible data. The vulnerability is rated medium severity with a CVSS 3.1 base score of 4.8, reflecting limited confidentiality and integrity impacts. Exploitation is considered difficult due to the required conditions. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update, indicating that patches are available.

CVSS v3.1

Score 4.8medium

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

Affected software

Oracle Corporation

Helidon

Affected versions
>=4.0.0 <=4.5.0
io.helidon/helidon
pkg:maven/io.helidon/helidon
Affected versions
=4.5.1

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 11:03:12 UTC

Technical Analysis

This vulnerability affects Oracle Helidon versions 4.0.0 through 4.5.1 in the Imperative Web Server component. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized update, insert, delete, and read access to subsets of Helidon accessible data. The CVSS 3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N, indicating network attack vector, high attack complexity, no privileges or user interaction required, and limited confidentiality and integrity impact without availability impact. Oracle has addressed this vulnerability in its August 2026 Critical Security Patch Update.

Potential Impact

Successful exploitation can lead to unauthorized modification (update, insert, delete) and unauthorized reading of some data accessible through Helidon. The impact is limited to confidentiality and integrity with no availability impact. The attack requires network access via HTTP and is difficult to exploit.

Mitigation Recommendations

Oracle has released patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users should apply the relevant security patches promptly to remediate this issue. Oracle strongly recommends staying on actively supported versions and applying security patches without delay. No additional mitigation steps are indicated beyond applying the official patches.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-13T18:41:45.885Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]

Threat ID: 6a84cce7c6e8be0332c3965c

Added to database: 08/18/2026, 21:21:43 UTC

Last enriched: 09/11/2026, 11:03:12 UTC

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

Views: 100

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