CVE-2026-73884: 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-2026-73884 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 high severity with a significant confidentiality impact. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, recommending timely patching to mitigate risk.
AI Analysis
Technical Summary
This vulnerability affects the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component. It allows an unauthenticated attacker with network access over HTTP to compromise Helidon and access critical data without authorization. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction and impacts confidentiality but not integrity or availability. The affected versions are 4.0.0 through 4.4.1 inclusive, and 4.5.0. Oracle's August 2026 Critical Security Patch Update advisory references this vulnerability and strongly recommends applying patches promptly to mitigate exploitation risks.
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 reported. The vulnerability is exploitable remotely without authentication, increasing the risk of data exposure.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in August 2026 that addresses this vulnerability. Customers are strongly advised to apply the relevant security patches without delay and remain on actively supported versions. No alternative mitigations or workarounds are specified in the advisory.
CVE-2026-73884: 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-2026-73884 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 high severity with a significant confidentiality impact. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, recommending timely patching to mitigate risk.
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. It allows an unauthenticated attacker with network access over HTTP to compromise Helidon and access critical data without authorization. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction and impacts confidentiality but not integrity or availability. The affected versions are 4.0.0 through 4.4.1 inclusive, and 4.5.0. Oracle's August 2026 Critical Security Patch Update advisory references this vulnerability and strongly recommends applying patches promptly to mitigate exploitation risks.
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 reported. The vulnerability is exploitable remotely without authentication, increasing the risk of data exposure.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in August 2026 that addresses this vulnerability. Customers are strongly advised to apply the relevant security patches without delay and remain on actively supported versions. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.883Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84cce2c6e8be0332c394fa
Added to database: 08/18/2026, 21:21:38 UTC
Last enriched: 09/11/2026, 11:02:52 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 25
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