CVE-2026-73904: 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
CVE-2026-73904 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 affects confidentiality and integrity but not availability, with a CVSS 3.1 base score of 6.5 (medium severity).
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) affects supported versions 4.0.0 through 4.5.1. It allows an unauthenticated attacker with network access via HTTP to compromise the system by unauthorized update, insert, or delete operations on some accessible data, as well as unauthorized read access to a subset of that data. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and impacts confidentiality and integrity but not availability.
Potential Impact
Successful exploitation can lead to unauthorized modification (update, insert, delete) and unauthorized reading of some Helidon accessible data, impacting confidentiality and integrity of the affected system. There is no impact on availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in August 2026 that addresses this and many other vulnerabilities. Customers are strongly advised to apply the available security patches promptly and remain on actively supported versions. Specific patch availability for Helidon versions 4.0.0 through 4.5.2 is documented in the Oracle advisory. No indication that the vulnerability is already mitigated without patching.
CVE-2026-73904: 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
Description
CVE-2026-73904 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 affects confidentiality and integrity but not availability, with a CVSS 3.1 base score of 6.5 (medium severity).
CVSS v3.1
Score 6.5medium
Affected software
Oracle Corporation
Helidon
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Oracle Helidon (Imperative Web Server component) affects supported versions 4.0.0 through 4.5.1. It allows an unauthenticated attacker with network access via HTTP to compromise the system by unauthorized update, insert, or delete operations on some accessible data, as well as unauthorized read access to a subset of that data. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and impacts confidentiality and integrity but not availability.
Potential Impact
Successful exploitation can lead to unauthorized modification (update, insert, delete) and unauthorized reading of some Helidon accessible data, impacting confidentiality and integrity of the affected system. There is no impact on availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in August 2026 that addresses this and many other vulnerabilities. Customers are strongly advised to apply the available security patches promptly and remain on actively supported versions. Specific patch availability for Helidon versions 4.0.0 through 4.5.2 is documented in the Oracle advisory. No indication that the vulnerability is already mitigated without patching.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.886Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84cce7c6e8be0332c39662
Added to database: 08/18/2026, 21:21:43 UTC
Last enriched: 09/11/2026, 10:50:15 UTC
Last updated: 10/03/2026, 14:46:10 UTC
Views: 60
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