EUVD-2026-62010
GHSA-xmjp-jw52-qx9c
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Unauthenticated remote HTTP auth bypass gives AV:N/AC:L/PR:N/UI:N; scope change (S:C) reflects downstream impact; high data read (C:H), partial write (I:L), no availability effect (A:N).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/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. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert or delete access to some of Helidon accessible data. CVSS 3.1 Base Score 9.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N).
AnalysisAI
Authentication bypass in Oracle Helidon 3.2.18 (Imperative Web Server component of Oracle Fusion Middleware) lets an unauthenticated remote attacker send crafted HTTP requests to gain unauthorized read access to critical data and limited write (insert/update/delete) access. The flaw carries a scope-changing CVSS 3.1 base score of 9.3, meaning a successful attack can significantly impact products beyond Helidon itself. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires only network reachability to the Helidon Imperative Web Server's HTTP interface on the affected 3.2.18 build; no authentication, no user interaction, and low attack complexity (AV:N/AC:L/PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals point to a genuine high priority rather than an inflated score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach the Helidon HTTP listener sends a specially crafted request that bypasses the server's authentication check, then reads sensitive application data and performs limited unauthorized writes without any credentials or user interaction. Given the scope change, the same access can pivot into downstream products the Helidon service fronts. … |
| Remediation | Apply the fix from Oracle's August 2026 Critical Patch Update per the advisory at https://www.oracle.com/security-alerts/cspuaug2026.html (Patch available per vendor advisory; Oracle did not publish a discrete fixed Helidon version number in the provided data, so confirm the exact patched build in the CPU matrix before deploying). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Oracle Helidon 3.2.18 instances across the infrastructure and flag those handling sensitive data; disable or restrict external access to affected Helidon instances where operationally feasible. …
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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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