VULNERABILITY INTELLIGENCE

CVE-2026-83276

CVSS score7.5 HIGH
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-09-15
Last modified2026-09-28
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-http2). Supported versions that are affected are 4.0.0-4.5.4. 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).

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-400

Primary references