CVE-2026-73896
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk29th percentile - higher than 29% of all known CVEs
Summary
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) version 4.5.0. Easily exploitable flaw allows unauthenticated attacker with network access via HTTP/2 to gain unauthorized read access to a subset of Helidon accessible data and cause partial denial of service. CVSS 3.1 Base Score 6.5 (Confidentiality and Availability impacts).
Risk Assessment
Risk includes data exposure and partial service disruption, potentially affecting application availability. Attack requires no authentication or user interaction.
Recommendation
Apply the vendor-provided patch or upgrade Helidon to a fixed version. Implement DoS protection mechanisms and monitor HTTP/2 traffic for anomalies.
Original NVD description (English source)
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/2 to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).