CVE-2026-71157: 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-2026-71157 is a vulnerability in Oracle Helidon's Imperative Web Server component that allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some Helidon accessible data. The affected versions include 3.0.0 through 3.2.17, 4.0.0 through 4.4.1, and version 4.5.0. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity with confidentiality impact only. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, which addresses many vulnerabilities across multiple products. The advisory recommends applying available patches promptly. No specific exploit is known to be active in the wild at this time.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker with network access via HTTP to read a subset of accessible data without authorization. It affects Helidon versions 3.0.0 to 3.2.17, 4.0.0 to 4.4.1, and 4.5.0. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, reflecting low attack complexity, no privileges or user interaction required, and limited confidentiality impact. Oracle's August 2026 Critical Security Patch Update includes fixes for this vulnerability among many others. The vendor strongly urges customers to apply patches without delay to mitigate exploitation risks.
Potential Impact
Successful exploitation allows unauthorized read access to a subset of data accessible via Helidon, potentially exposing sensitive information. There is no impact on integrity or availability. The vulnerability is exploitable remotely without authentication, increasing risk. However, no known active exploits have been reported.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of its August 2026 Critical Security Patch Update. Customers should apply the relevant patches promptly to remediate the issue. Oracle strongly recommends staying on actively supported versions and applying security updates without delay. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated beyond patching.
CVE-2026-71157: 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-2026-71157 is a vulnerability in Oracle Helidon's Imperative Web Server component that allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some Helidon accessible data. The affected versions include 3.0.0 through 3.2.17, 4.0.0 through 4.4.1, and version 4.5.0. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity with confidentiality impact only. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, which addresses many vulnerabilities across multiple products. The advisory recommends applying available patches promptly. No specific exploit is known to be active in the wild at this time.
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 read a subset of accessible data without authorization. It affects Helidon versions 3.0.0 to 3.2.17, 4.0.0 to 4.4.1, and 4.5.0. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, reflecting low attack complexity, no privileges or user interaction required, and limited confidentiality impact. Oracle's August 2026 Critical Security Patch Update includes fixes for this vulnerability among many others. The vendor strongly urges customers to apply patches without delay to mitigate exploitation risks.
Potential Impact
Successful exploitation allows unauthorized read access to a subset of data accessible via Helidon, potentially exposing sensitive information. There is no impact on integrity or availability. The vulnerability is exploitable remotely without authentication, increasing risk. However, no known active exploits have been reported.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of its August 2026 Critical Security Patch Update. Customers should apply the relevant patches promptly to remediate the issue. Oracle strongly recommends staying on actively supported versions and applying security updates without delay. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated beyond patching.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-04T22:06:34.621Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccd9c6e8be0332c391b5
Added to database: 08/18/2026, 21:21:29 UTC
Last enriched: 09/11/2026, 11:33:09 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 25
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