EUVD-2026-62163
GHSA-j4wp-h228-xcvx
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Network vector and low complexity are consistent with HTTP-accessible service; PR:L reflects required low-privilege credentials per description; no availability impact per Oracle.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionCVE.org
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 3.2.18. Easily exploitable vulnerability allows low privileged 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 as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
AnalysisAI
Unauthorized data access in Oracle Helidon 3.2.18's Imperative Web Server component allows low-privileged network attackers to read a subset of accessible data and perform unauthorized insert, update, or delete operations via HTTP. Tagged as an authentication bypass by Oracle, the flaw presents a moderate but concrete integrity and confidentiality risk for organizations running this specific microservice framework version. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privileged account with network access to the Helidon 3.2.18 Imperative Web Server via HTTP (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 5.4 (Medium) is consistent with the available signals. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with a low-privileged account in an environment running Helidon 3.2.18 sends crafted HTTP requests to the Imperative Web Server, exploiting improper authorization enforcement to access data endpoints beyond their privilege tier. The attacker reads a subset of application data and performs unauthorized insert or update operations - for example, manipulating application state or exfiltrating records - without triggering availability disruption. … |
| Remediation | Apply Oracle's Critical Patch Update for August 2026, available at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
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