CVE-2026-71156: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data. in Oracle Corporation Helidon
CVE-2026-71156 is a vulnerability in Oracle Helidon versions 3.0.0 through 3.2.19 that allows an unauthenticated attacker with network access via HTTP to perform unauthorized update, insert, or delete operations on accessible data. The vulnerability affects the Imperative Web Server component of Helidon. It has a CVSS 3.1 base score of 5.3, indicating a medium severity with integrity impact but no confidentiality or availability impact. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) versions 3.0.0 to 3.2.19 allows unauthenticated network attackers to modify data by unauthorized update, insert, or delete operations via HTTP. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality or availability impact, but integrity impact is low. The vulnerability is included in Oracle's August 2026 Critical Security Patch Update advisory.
Potential Impact
Successful exploitation allows an unauthenticated attacker to modify Helidon accessible data by unauthorized update, insert, or delete operations, impacting data integrity. There is no impact on confidentiality or availability. The vulnerability is rated medium severity with a CVSS score of 5.3.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the August 2026 Critical Security Patch Update. Users should apply the relevant patches promptly. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No indication was given that the vulnerability is already mitigated or requires no action.
CVE-2026-71156: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data. in Oracle Corporation Helidon
Description
CVE-2026-71156 is a vulnerability in Oracle Helidon versions 3.0.0 through 3.2.19 that allows an unauthenticated attacker with network access via HTTP to perform unauthorized update, insert, or delete operations on accessible data. The vulnerability affects the Imperative Web Server component of Helidon. It has a CVSS 3.1 base score of 5.3, indicating a medium severity with integrity impact but no confidentiality or availability impact. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update.
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) versions 3.0.0 to 3.2.19 allows unauthenticated network attackers to modify data by unauthorized update, insert, or delete operations via HTTP. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality or availability impact, but integrity impact is low. The vulnerability is included in Oracle's August 2026 Critical Security Patch Update advisory.
Potential Impact
Successful exploitation allows an unauthenticated attacker to modify Helidon accessible data by unauthorized update, insert, or delete operations, impacting data integrity. There is no impact on confidentiality or availability. The vulnerability is rated medium severity with a CVSS score of 5.3.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the August 2026 Critical Security Patch Update. Users should apply the relevant patches promptly. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No indication was given that the vulnerability is already mitigated or requires no action.
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: 6a84ccd9c6e8be0332c391b3
Added to database: 08/18/2026, 21:21:29 UTC
Last enriched: 09/11/2026, 11:33:16 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 27
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