CVE-2026-73938: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. in Oracle Corporation Helidon
CVE-2026-73938 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 gain unauthorized access to critical or all accessible data. The vulnerability has a CVSS 3.1 base score of 7.5, indicating a high severity with a significant confidentiality impact but no impact on integrity or availability. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, which provides patches for affected versions.
AI Analysis
Technical Summary
This vulnerability affects the Imperative Web Server component of Oracle Helidon. It allows an unauthenticated attacker with network access over HTTP to compromise the system, resulting in unauthorized access to critical or all accessible data. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high confidentiality impact without integrity or availability impact. The affected versions are 4.0.0 through 4.4.1 inclusive and 4.5.0. Oracle has addressed this vulnerability in its August 2026 Critical Security Patch Update, which includes patches for Helidon versions up to 4.5.2.
Potential Impact
Successful exploitation of this vulnerability can lead to unauthorized access to critical data or complete access to all data accessible through Helidon. This compromises confidentiality but does not affect integrity or availability. The vulnerability is exploitable remotely without authentication, increasing the risk of exposure.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users should apply the available patches promptly to affected Helidon versions (4.0.0 through 4.4.1 and 4.5.0). Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.
CVE-2026-73938: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. in Oracle Corporation Helidon
Description
CVE-2026-73938 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 gain unauthorized access to critical or all accessible data. The vulnerability has a CVSS 3.1 base score of 7.5, indicating a high severity with a significant confidentiality impact but no impact on integrity or availability. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, which provides patches for affected versions.
CVSS v3.1
Score 7.5high
Affected software
Oracle Corporation
Helidon
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Imperative Web Server component of Oracle Helidon. It allows an unauthenticated attacker with network access over HTTP to compromise the system, resulting in unauthorized access to critical or all accessible data. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high confidentiality impact without integrity or availability impact. The affected versions are 4.0.0 through 4.4.1 inclusive and 4.5.0. Oracle has addressed this vulnerability in its August 2026 Critical Security Patch Update, which includes patches for Helidon versions up to 4.5.2.
Potential Impact
Successful exploitation of this vulnerability can lead to unauthorized access to critical data or complete access to all data accessible through Helidon. This compromises confidentiality but does not affect integrity or availability. The vulnerability is exploitable remotely without authentication, increasing the risk of exposure.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users should apply the available patches promptly to affected Helidon versions (4.0.0 through 4.4.1 and 4.5.0). Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.892Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccf0c6e8be0332c39845
Added to database: 08/18/2026, 21:21:52 UTC
Last enriched: 09/11/2026, 10:33:41 UTC
Last updated: 10/02/2026, 10:14:30 UTC
Views: 84
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