EUVD-2026-62152
GHSA-93vm-m7jr-h28j
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network HTTP vector, no credentials or interaction needed per description; confidentiality-only impact with no integrity or availability consequence confirmed.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP 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 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
AnalysisAI
Unauthorized data exposure in Oracle Helidon 4.5.0's Imperative Web Server component allows unauthenticated, network-adjacent attackers to read critical application data via HTTP. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms trivial exploitability with no authentication or user interaction required. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions are required beyond network access to the Helidon 4.5.0 Imperative Web Server over HTTP - the CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms unauthenticated exploitation against default configurations of Helidon 4.5.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.5 accurately reflects the attack surface: network-reachable, no credentials, no complexity, no user interaction - signals that make this straightforwardly exploitable by any attacker with HTTP access to the service. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can send HTTP requests to a Helidon 4.5.0 Imperative Web Server endpoint - whether via direct internet exposure or through a compromised internal host - crafts a request that bypasses the server's authentication check. With no credentials required and low complexity, the attacker gains read access to all data the server processes, potentially including API responses, session data, or backend service payloads. … |
| Remediation | Apply Oracle's August 2026 Critical Patch Update, available via the Oracle advisory at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Oracle Helidon 4.5.0 instances in production environments and immediately implement network-level access restrictions limiting HTTP traffic to only trusted internal sources; enable audit logging on affected servers. …
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Same weakness CWE-284 – Improper Access Control
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External POC / Exploit Code
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