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CVE-2026-70716: Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data. in Oracle Corporation Helidon

0
Medium
VulnerabilityCVE-2026-70716cvecve-2026-70716
Published: 08/18/2026 (08/18/2026, 21:01:10 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Helidon

Description

CVE-2026-70716 is a vulnerability in Oracle Helidon's Imperative Web Server component affecting versions 3.0.0 through 3.2.17, 4.0.0 through 4.4.1, and version 4.5.0. It allows an unauthenticated attacker with network access via HTTP to potentially compromise Helidon, resulting in unauthorized creation, deletion, or modification of critical or all accessible data. The vulnerability is rated medium severity with a CVSS 3.1 base score of 5.9, primarily impacting data integrity. The vulnerability is difficult to exploit and no known exploits are reported in the wild. Oracle has released security patches addressing this and many other vulnerabilities in their August 2026 Critical Security Patch Update. Users are strongly advised to apply these patches promptly.

CVSS v3.1

Score 5.9medium

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

Affected software

Oracle Corporation

Helidon

Affected versions
>=3.0.0 <=3.2.17>=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, 16:34:49 UTC

Technical Analysis

This vulnerability affects Oracle Helidon versions >=3.0.0 <=3.2.17, >=4.0.0 <=4.4.1, and =4.5.0 in the Imperative Web Server component. It allows an unauthenticated attacker with network access via HTTP to compromise the system, leading to unauthorized creation, deletion, or modification of critical or all accessible data. The CVSS 3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N, indicating network attack vector, high attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality impact, high integrity impact, and no availability impact. Oracle's August 2026 Critical Security Patch Update includes fixes for this vulnerability. No known exploits are currently reported in the wild.

Potential Impact

Successful exploitation can lead to unauthorized modification of critical data or all data accessible via Helidon, compromising data integrity. There is no impact on confidentiality or availability. The vulnerability is rated medium severity with a CVSS score of 5.9. No known active exploitation has been reported.

Mitigation Recommendations

Oracle has released security patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users should apply the relevant patches for affected Helidon versions without delay. Oracle strongly recommends staying on actively-supported versions and promptly applying security updates. No additional mitigation steps are indicated by the vendor advisory.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-04T22:06:34.591Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]

Threat ID: 6a84c9f4c6e8be0332bf1885

Added to database: 08/18/2026, 21:09:08 UTC

Last enriched: 09/11/2026, 16:34:49 UTC

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

Views: 26

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