Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Local vector and high privileges required reflect infrastructure logon dependency; confidentiality-only impact with no integrity or availability effect confirmed by description.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/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 4.5.1. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Helidon executes to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 4.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).
AnalysisAI
Local high-privilege information disclosure in Oracle Helidon 4.5.1's Imperative Web Server component allows an attacker with OS-level logon access to the hosting infrastructure to read all data accessible to the Helidon process. The CVSS vector (AV:L/AC:L/PR:H) confirms exploitation is constrained to local infrastructure access with elevated credentials, resulting in complete confidentiality loss (C:H) with no integrity or availability impact. …
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Attack ChainAIDerived
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Vulnerability AssessmentAI
| Exploitation | Exploitation requires two hard prerequisites: (1) local logon access to the physical or virtual infrastructure where the Helidon process executes (AV:L - no remote exploitation path), and (2) high operating-system privileges on that host (PR:H). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The overall real-world risk is low-to-moderate. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has already obtained high-privilege local access to the server running Helidon 4.5.1 - through credential theft, lateral movement from another compromised system, or insider access - leverages the flaw in the Imperative Web Server component to read data the Helidon process can access, potentially including in-memory secrets, configuration data, or business data handled by the microservice. No public exploit code exists, so exploitation would currently require custom tooling or direct manual interaction. |
| Remediation | Consult the Oracle Critical Security Patch Update (CPU) for August 2026 at https://www.oracle.com/security-alerts/cspuaug2026.html for the official patched release; an exact fixed version number is not independently confirmed in the available intelligence data, so the patch status is 'Patch available per vendor advisory' pending version confirmation. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-284 – Improper Access Control
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-62124
GHSA-6w35-q4h6-6f67