CVE-2026-73887

HighCVSS 7.5

Published: 18/08/2026(UTC)Translated: 19/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.30%

23th percentile - higher than 23% of all known CVEs

Summary

Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) version 4.5.0. An unauthenticated attacker can gain unauthorized access to critical data or all Helidon accessible data via HTTP/2. CVSS 7.5 (Confidentiality impact).

Risk Assessment

The risk is potential full disclosure of sensitive data stored in Helidon, compromising organizational confidentiality.

Recommendation

Apply vendor patches or update Helidon to a fixed version. Restrict access and monitor network traffic.

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 access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).