CVE-2026-73899: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon
CVE-2026-73899 is a medium severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.18 and 3.2.19. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to a subset of data accessible through Helidon. The vulnerability affects the Imperative Web Server component and has a CVSS 3.1 base score of 5.3, indicating a confidentiality impact without integrity or availability effects. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update, which provides security patches across multiple products including Helidon.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker with network access via HTTP to compromise the product and read certain accessible data without authorization. The affected versions are 3.0.0 through 3.2.18 and 3.2.19. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and limited confidentiality impact. Oracle has addressed this vulnerability in its August 2026 Critical Security Patch Update, which includes patches for Helidon and other products. Customers are strongly advised to apply the available patches promptly.
Potential Impact
Successful exploitation results in unauthorized read access to a subset of data accessible via Helidon. There is no impact on integrity or availability. The vulnerability can be exploited remotely without authentication, increasing the risk of data exposure over the network.
Mitigation Recommendations
Oracle has released security patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Customers should apply these patches without delay to remediate the issue. Oracle strongly recommends staying on actively supported versions and promptly applying security updates to prevent exploitation.
CVE-2026-73899: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon
Description
CVE-2026-73899 is a medium severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.18 and 3.2.19. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to a subset of data accessible through Helidon. The vulnerability affects the Imperative Web Server component and has a CVSS 3.1 base score of 5.3, indicating a confidentiality impact without integrity or availability effects. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update, which provides security patches across multiple products including Helidon.
CVSS v3.1
Score 5.3medium
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 via HTTP to compromise the product and read certain accessible data without authorization. The affected versions are 3.0.0 through 3.2.18 and 3.2.19. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and limited confidentiality impact. Oracle has addressed this vulnerability in its August 2026 Critical Security Patch Update, which includes patches for Helidon and other products. Customers are strongly advised to apply the available patches promptly.
Potential Impact
Successful exploitation results in unauthorized read access to a subset of data accessible via Helidon. There is no impact on integrity or availability. The vulnerability can be exploited remotely without authentication, increasing the risk of data exposure over the network.
Mitigation Recommendations
Oracle has released security patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Customers should apply these patches without delay to remediate the issue. Oracle strongly recommends staying on actively supported versions and promptly applying security updates to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.885Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84cce7c6e8be0332c39658
Added to database: 08/18/2026, 21:21:43 UTC
Last enriched: 09/11/2026, 11:03:28 UTC
Last updated: 10/03/2026, 02:46:06 UTC
Views: 50
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