EUVD-2026-62182
GHSA-744q-589q-prch
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Network-accessible HTTP authentication bypass with no privileges or user interaction required; scope change and high integrity impact confirmed; no confidentiality or availability impact applies.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/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 3.2.20. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data. CVSS 3.1 Base Score 8.6 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N).
AnalysisAI
Unauthenticated remote exploitation of Oracle Helidon 3.2.20's Imperative Web Server component enables attackers to perform unauthorized creation, deletion, or modification of critical data via HTTP with no prerequisites. The vulnerability carries a scope change (S:C in CVSS), meaning successful exploitation can cascade to impact additional products or systems beyond Helidon itself. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions are required beyond network-level HTTP access to a Helidon 3.2.20 Imperative Web Server instance - the CVSS vector AV:N/AC:L/PR:N/UI:N/S:C confirms remote unauthenticated exploitation against the affected version in its default configuration. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 8.6 is driven by AV:N/AC:L/PR:N/UI:N - maximum accessibility with zero prerequisites - combined with a scope change (S:C) and high integrity impact (I:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker with HTTP access to a Helidon 3.2.20 Imperative Web Server sends a crafted HTTP request that bypasses the server's authentication or access control checks, directly invoking a protected write-capable endpoint. The attacker can then create, modify, or delete critical application data managed by Helidon, with potential cascading impact on downstream systems or services that consume that data due to the scope change. … |
| Remediation | Apply Oracle's August 2026 Critical Security Patch Update (CPU), available via https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct immediate inventory of all Oracle Helidon 3.2.20 deployments across production and development environments and document which downstream services and systems depend on affected instances. …
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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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