CVE-2026-73934

HIGH CVSS 3.1: 7.5 EPSS 0.31%
Updated Aug 21, 2026
Oracle
Parameter Value
CVSS 7.5 (HIGH)
Type CWE-284 (Improper Access Control)
Vendor Oracle
Public PoC No

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 3.2.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon.

Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Oracle Helidon
cpe:2.3:a:oracle:helidon:3.2.19:*:*:*:*:*:*:*