CVE-2026-73883: 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-2026-73883 is a high-severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.17 and 3.2.18. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical or all accessible data in Helidon. The vulnerability 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 affects the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component. Versions 3.0.0 through 3.2.17 and 3.2.18 are impacted. An unauthenticated attacker can exploit this flaw remotely over HTTP to compromise the system, resulting in unauthorized access to sensitive data. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms network attack vector, low attack complexity, no privileges or user interaction required, and high confidentiality impact with no integrity or availability impact.
Potential Impact
Successful exploitation can lead to unauthorized access to critical or all data accessible through Helidon, compromising confidentiality. There is no impact on integrity or availability. The vulnerability is easily exploitable remotely without authentication, increasing risk.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of their August 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly. The vendor advisory emphasizes remaining on actively supported versions and applying security updates without delay to mitigate exploitation risk.
CVE-2026-73883: 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-2026-73883 is a high-severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.17 and 3.2.18. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical or all accessible data in Helidon. The vulnerability 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 affects the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component. Versions 3.0.0 through 3.2.17 and 3.2.18 are impacted. An unauthenticated attacker can exploit this flaw remotely over HTTP to compromise the system, resulting in unauthorized access to sensitive data. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms network attack vector, low attack complexity, no privileges or user interaction required, and high confidentiality impact with no integrity or availability impact.
Potential Impact
Successful exploitation can lead to unauthorized access to critical or all data accessible through Helidon, compromising confidentiality. There is no impact on integrity or availability. The vulnerability is easily exploitable remotely without authentication, increasing risk.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of their August 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly. The vendor advisory emphasizes remaining on actively supported versions and applying security updates without delay to mitigate exploitation risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.883Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84cce2c6e8be0332c394f7
Added to database: 08/18/2026, 21:21:38 UTC
Last enriched: 09/11/2026, 11:04:46 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 26
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