CVE-2026-73908: 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-2026-73908 is a high-severity vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical or all accessible data in Helidon. The vulnerability affects the Imperative Web Server component and has a CVSS 3.1 base score of 7.5, indicating a significant confidentiality impact without requiring privileges or user interaction.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker with network access over HTTP to compromise the system, resulting in unauthorized access to critical or all accessible data. The affected versions are from 4.0.0 up to and including 4.4.1, and also version 4.5.0. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and high confidentiality impact with no integrity or availability impact. Oracle has included this vulnerability in their August 2026 Critical Security Patch Update, which contains numerous patches across multiple products including Helidon.
Potential Impact
Successful exploitation allows an unauthenticated attacker to gain unauthorized access to critical or all data accessible via Helidon, potentially compromising confidentiality. There is no impact on integrity or availability according to the CVSS vector. The vulnerability is easily exploitable over the network without authentication.
Mitigation Recommendations
Oracle has addressed this vulnerability in their August 2026 Critical Security Patch Update. Customers are strongly advised to apply the relevant patches promptly to affected Helidon versions. Staying on actively supported versions and applying Oracle's security patches without delay is recommended. Patch availability and installation instructions are provided in the Oracle advisory at https://www.oracle.com/security-alerts/cspuaug2026.html.
CVE-2026-73908: 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-2026-73908 is a high-severity vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical or all accessible data in Helidon. The vulnerability affects the Imperative Web Server component and has a CVSS 3.1 base score of 7.5, indicating a significant confidentiality impact without requiring privileges or user interaction.
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 in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker with network access over HTTP to compromise the system, resulting in unauthorized access to critical or all accessible data. The affected versions are from 4.0.0 up to and including 4.4.1, and also version 4.5.0. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and high confidentiality impact with no integrity or availability impact. Oracle has included this vulnerability in their August 2026 Critical Security Patch Update, which contains numerous patches across multiple products including Helidon.
Potential Impact
Successful exploitation allows an unauthenticated attacker to gain unauthorized access to critical or all data accessible via Helidon, potentially compromising confidentiality. There is no impact on integrity or availability according to the CVSS vector. The vulnerability is easily exploitable over the network without authentication.
Mitigation Recommendations
Oracle has addressed this vulnerability in their August 2026 Critical Security Patch Update. Customers are strongly advised to apply the relevant patches promptly to affected Helidon versions. Staying on actively supported versions and applying Oracle's security patches without delay is recommended. Patch availability and installation instructions are provided in the Oracle advisory at https://www.oracle.com/security-alerts/cspuaug2026.html.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.887Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccebc6e8be0332c396d8
Added to database: 08/18/2026, 21:21:47 UTC
Last enriched: 09/11/2026, 10:49:38 UTC
Last updated: 10/03/2026, 14:46:10 UTC
Views: 56
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