EUVD-2026-62169
GHSA-jwqg-99c4-6ggm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Network HTTP vector, no credentials required per description and PR:N; I:H reflects unrestricted data write/delete; C:L for partial read; no availability impact stated.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 1.4.19. 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 read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N).
AnalysisAI
Unauthenticated remote exploitation of Oracle Helidon 1.4.19's Imperative Web Server component via HTTP allows attackers to perform unauthorized creation, deletion, and modification of critical application data, with partial read access to Helidon-accessible data. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms zero barriers to exploitation - no credentials, no user interaction, and low attack complexity over standard HTTP. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special pre-configuration is required beyond network reachability - remote unauthenticated exploitation against default configurations of Oracle Helidon 1.4.19 Imperative Web Server over HTTP, as confirmed by the CVSS vector (AV:N/AC:L/PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 8.2 (High) is supported by a permissive vector: network-reachable, low complexity, no privileges, no user interaction, with High integrity impact and Low confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated remote attacker with HTTP access to a Helidon 1.4.19 Imperative Web Server sends crafted HTTP requests that bypass the server's authentication controls, directly reaching write-path API endpoints. The attacker can then issue create, update, or delete operations against critical data managed by the application - such as user records, configuration state, or business objects - without possessing any credentials. … |
| Remediation | Consult the Oracle Critical Patch Update advisory for August 2026 (https://www.oracle.com/security-alerts/cspuaug2026.html) for the official patched release; a specific fix version number is not independently confirmed from the available input data and should be obtained directly from Oracle. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all systems running Oracle Helidon 1.4.19 and immediately restrict network access to affected Helidon services to trusted internal networks only, isolating from untrusted or internet-facing users. …
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Same weakness CWE-284 – Improper Access Control
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External POC / Exploit Code
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