EUVD-2026-62141
GHSA-69x2-42mj-2cx7
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Network-reachable HTTP endpoint with no auth required (PR:N), trivial complexity (AC:L), partial C/I impact matching description, no availability impact confirmed.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionCVE.org
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).
AnalysisAI
Unauthenticated remote exploitation of Oracle Helidon 4.1.0's Imperative Web Server component allows network-accessible attackers to bypass authentication controls via HTTP, resulting in unauthorized partial read and write access to application data. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms this is trivially exploitable with no prerequisites beyond network reachability, and the 'Authentication Bypass' tag corroborates an access-control failure in the web server layer. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special configuration is required beyond network reachability - the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates exploitation targets default deployments of Helidon 4.5.0 using the Imperative Web Server component over HTTP, with no authentication, no user interaction, and no unusual setup needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.5 (Medium) reflects a network-accessible, zero-authentication flaw with low complexity - signals that typically indicate high exploitability. … 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 4.5.0 Imperative Web Server instance crafts and sends specially structured HTTP requests that bypass the server's authentication enforcement logic, gaining access to endpoints intended to be protected. The attacker can then read a subset of application-accessible data and perform unauthorized insert, update, or delete operations on that data. … |
| Remediation | Apply the patch provided in the Oracle Critical Patch Update (CPU) for August 2026, available at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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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