CVE-2026-73871: 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-2026-73871 is a medium severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.17 and version 3.2.18. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some Helidon accessible data. The vulnerability affects the Imperative Web Server component of Oracle Fusion Middleware Helidon. The CVSS 3.1 base score is 5.3, reflecting a confidentiality impact without integrity or availability impact. Oracle has published a Critical Security Patch Update advisory that includes patches for Helidon, indicating that fixes are available.
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. The affected versions are from 3.0.0 up to and including 3.2.17, as well as version 3.2.18. 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 a confidentiality impact only. Oracle's August 2026 Critical Security Patch Update advisory includes patches for Helidon versions 3.0.0 through 3.2.19, confirming that fixes have been released.
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 can be exploited remotely without authentication, increasing the risk of data exposure.
Mitigation Recommendations
Oracle has released patches for Helidon as part of the August 2026 Critical Security Patch Update. Users should apply the official patches promptly to remediate this vulnerability. The vendor advisory confirms patch availability. No additional mitigations are specified or required beyond applying the official fixes.
CVE-2026-73871: 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-2026-73871 is a medium severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.17 and version 3.2.18. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some Helidon accessible data. The vulnerability affects the Imperative Web Server component of Oracle Fusion Middleware Helidon. The CVSS 3.1 base score is 5.3, reflecting a confidentiality impact without integrity or availability impact. Oracle has published a Critical Security Patch Update advisory that includes patches for Helidon, indicating that fixes are available.
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. The affected versions are from 3.0.0 up to and including 3.2.17, as well as version 3.2.18. 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 a confidentiality impact only. Oracle's August 2026 Critical Security Patch Update advisory includes patches for Helidon versions 3.0.0 through 3.2.19, confirming that fixes have been released.
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 can be exploited remotely without authentication, increasing the risk of data exposure.
Mitigation Recommendations
Oracle has released patches for Helidon as part of the August 2026 Critical Security Patch Update. Users should apply the official patches promptly to remediate this vulnerability. The vendor advisory confirms patch availability. No additional mitigations are specified or required beyond applying the official fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.881Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccdfc6e8be0332c3945d
Added to database: 08/18/2026, 21:21:35 UTC
Last enriched: 09/11/2026, 11:18:53 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 27
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