EUVD-2026-62160
GHSA-jv5j-g9cf-w4pw
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated network HTTP access with low complexity (AV:N/AC:L/PR:N/UI:N) yields full data read and write (C:H/I:H) but no availability impact (A:N).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Unauthenticated remote compromise of Oracle Helidon 3.2.18 (Imperative Web Server component) allows a network attacker to read, create, modify, or delete all data accessible to the framework over HTTP. Tagged by Oracle as an authentication bypass, it carries a CVSS 3.1 base score of 9.1 with high confidentiality and integrity impact and no availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires only network HTTP reachability to a Helidon 3.2.18 deployment using the Imperative Web Server component - the CVSS vector AV:N/AC:L/PR:N/UI:N confirms no authentication, no user interaction, and low complexity, so it works against affected default deployments exposed over the network. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority issue rather than an inflated CVSS number: the vector (AV:N/AC:L/PR:N/UI:N) describes trivial, unauthenticated, network-based exploitation, and Oracle explicitly labels it 'easily exploitable' and an authentication bypass, so any mid-sized operator such as a municipal IT team in kalisz running an internet-exposed Helidon 3.2.18 service should treat it as urgent. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the fix from Oracle's August 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cspuaug2026.html); no exact fixed Helidon version number is stated in the available data, so consult that advisory for the precise patched release and upgrade from 3.2.18 accordingly - Patch available per vendor advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Oracle Helidon 3.2.18 instances and restrict network access via firewall rules permitting only essential internal traffic; pause any external-facing deployments of this version. …
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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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