EUVD-2026-62102
GHSA-hpv5-9559-pc8j
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-delivered via HTTP with low privilege required; high complexity limits reliable exploitation; full C/I/A impact consistent with vendor-described instance takeover.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
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. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Full instance takeover of Oracle Helidon 3.2.18 (Imperative Web Server component) is achievable by a low-privileged remote attacker over HTTP, though exploitation demands high attack complexity. The CVSS 3.1 score of 7.5 reflects complete confidentiality, integrity, and availability compromise - consistent with the vendor description of 'takeover' - affecting Oracle Fusion Middleware deployments running this specific release. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target to be running Oracle Helidon version 3.2.18 with the Imperative Web Server component active and reachable via HTTP over the network. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.5 captures a nuanced risk profile: the AV:N/AC:H/PR:L triplet means an attacker requires network access, authenticated or low-privileged access, and must overcome high attack complexity - materially reducing the population of actors capable of reliable exploitation compared to simpler, unauthenticated flaws. … 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 | The primary remediation is to apply Oracle's August 2026 Critical Security Patch Update, documented at https://www.oracle.com/security-alerts/cspuaug2026.html; the exact target patched version number is not confirmed in available data and must be retrieved directly from the Oracle advisory before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all systems running Oracle Helidon 3.2.18; restrict external HTTP access to affected instances and implement network segmentation to limit exposure to trusted internal networks only. …
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Same weakness CWE-284 – Improper Access Control
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External POC / Exploit Code
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