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CVE-2026-73924: Easily exploitable 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 as well as unauthorized access to critical data or complete access to all Helidon accessible data. in Oracle Corporation Helidon

0
Critical
VulnerabilityCVE-2026-73924cvecve-2026-73924
Published: 08/18/2026 (08/18/2026, 21:04:11 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Helidon

Description

CVE-2026-73924 is a critical vulnerability in Oracle Helidon versions 1.0.0 through 1.4.19. It allows an unauthenticated attacker with network access via HTTP to compromise the product, resulting in unauthorized creation, deletion, or modification of critical or all accessible data. The vulnerability has a CVSS 3.1 base score of 9.1, indicating high confidentiality and integrity impacts without availability impact.

CVSS v3.1

Score 9.1critical

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

Affected software

Oracle Corporation

Helidon

Affected versions
>=1.0.0 <=1.4.18
io.helidon/helidon
pkg:maven/io.helidon/helidon
Affected versions
=1.4.19

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 10:47:22 UTC

Technical Analysis

This vulnerability affects the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component. Versions 1.0.0 through 1.4.19 are vulnerable. An unauthenticated attacker with network access via HTTP can exploit this flaw to gain unauthorized creation, deletion, or modification access to critical data or all data accessible through Helidon. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) reflects network attack vector, low attack complexity, no privileges or user interaction required, and high confidentiality and integrity impact. Oracle has published a Critical Security Patch Update advisory for August 2026 addressing this and many other vulnerabilities, recommending patch application without delay.

Potential Impact

Successful exploitation can lead to unauthorized creation, deletion, or modification of critical data or all data accessible via Helidon, as well as unauthorized access to such data. This compromises confidentiality and integrity of the affected system's data but does not impact availability.

Mitigation Recommendations

Oracle has released security patches as part of the August 2026 Critical Security Patch Update covering Helidon versions 1.0.0 through 1.4.19. Customers are strongly advised to apply these patches promptly to remediate the vulnerability. No indication was given that the vulnerability is already mitigated or requires no action. Patch status is confirmed by the vendor advisory.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-13T18:41:45.890Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]

Threat ID: 6a84cceec6e8be0332c397f4

Added to database: 08/18/2026, 21:21:50 UTC

Last enriched: 09/11/2026, 10:47:22 UTC

Last updated: 10/03/2026, 03:38:35 UTC

Views: 59

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