CVE-2026-60915 in Helidon
Summary
by MITRE • 08/19/2026
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.0. Difficult to exploit 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 access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Imperative Web Server component of Oracle Fusion Middleware Helidon, specifically affecting version 4.5.0. This security flaw represents a significant risk to organizations relying on this framework for building microservices and cloud-native applications in Java environments. The core issue stems from an insufficient validation or sanitization mechanism inherent in how the server processes incoming HTTP requests. Although the vulnerability is classified as difficult to exploit, it does not require any form of user interaction or authentication prior to execution. This characteristic allows a remote attacker with network access to initiate malicious payloads directly against the service endpoint without needing valid credentials or social engineering tactics to trick an end-user into clicking a link or opening a file.
From a technical perspective, the flaw likely involves improper handling of input data that leads to unauthorized operations on the underlying system resources. The CVSS 3.1 vector indicates a network-based attack with high complexity and no prerequisites for authentication, resulting in substantial impacts on confidentiality and integrity while leaving availability largely unaffected. This suggests that an attacker can manipulate server-side logic or state management mechanisms to read sensitive data stored within Helidon-managed sessions or databases, modify critical configuration files or application data, or potentially delete essential records. The absence of access control checks for specific administrative functions allows the unauthenticated actor to perform actions typically reserved for privileged users, effectively bypassing intended security boundaries through crafted HTTP requests that exploit parsing inconsistencies or logic errors in the web server implementation.
The operational impact of this vulnerability is severe due to its potential to compromise the integrity and confidentiality of critical data assets. Successful exploitation could lead to unauthorized creation, deletion, or modification of application data, which may disrupt business operations by corrupting transactional records or user profiles. Furthermore, complete access to all Helidon accessible data poses a direct threat to intellectual property and personally identifiable information if such data is stored within the scope of the vulnerable component. The high complexity rating implies that while automated scanning tools might detect signs of this weakness, crafting a reliable exploit requires specific knowledge of the application's internal state or precise timing, making widespread opportunistic attacks less likely but targeted intrusions highly probable against known deployments running unpatched versions.
To mitigate this risk, immediate action is required to update Oracle Fusion Middleware Helidon to a version where the Imperative Web Server has been patched with proper input validation and access control enforcement. Organizations should also implement network-level security controls such as web application firewalls that can inspect HTTP traffic for anomalous patterns indicative of exploitation attempts related to this vulnerability type. Additionally, adhering to defense-in-depth principles by restricting direct internet exposure of Helidon endpoints and enforcing strict authentication mechanisms at the reverse proxy or API gateway level can significantly reduce the attack surface. Regular security assessments and penetration testing should be conducted to identify similar logic flaws in custom implementations that rely on Helidon components, ensuring compliance with industry standards such as CWE-284 for improper access control and aligning mitigation strategies with MITRE ATT&CK techniques related to initial access and privilege escalation via web application vulnerabilities.