CVE-2026-73930

CriticalCVSS 9.9

Published: 18/08/2026(UTC)Updated: 28/08/2026(UTC)Translated: 28/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.38%

31th percentile - higher than 31% of all known CVEs

Summary

Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server component) affects versions 3.0.0-3.2.19 and 4.0.0-4.5.2. Easily exploitable flaw allows unauthenticated attacker with network access via HTTP to perform unauthorized creation, deletion, or modification of data, unauthorized read access to a subset of data, and cause partial denial of service. Attacks may impact additional products (scope change). CVSS score 9.9.

Risk Assessment

Attack can lead to integrity and confidentiality breaches and partial unavailability, and may affect other systems, increasing potential damage.

Recommendation

Apply available security patches for Helidon versions 3.0.0-3.2.19 and 4.0.0-4.5.2. Restrict network access to the server to trusted sources only.

Other vulnerabilities in Helidon

See all

Original NVD description (English source)

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.19 and 4.0.0-4.5.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L).

Vulnerability data from NVD (NIST) · CISA KEV · EPSS