CVE-2026-54609

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CVSS 3.1

8.6 high

EPSS

<1%p18

Published

Jul 28, 2026 (Jul 28, 2026)

Modified

Jul 30, 2026

Description

QTI Neon is a minimal, game-agnostic, relay-based UDP multiplayer protocol library. In version 1.0.0, the relay's handleReconnectRequest forwards RECONNECT_REQUEST packets to the host without bounding them, so an unauthenticated client can drive relay-to-host amplification and cause a denial of service on the host. No fixed version is available as of this review.

Weakness: CWE-400, CWE-406, CWE-770
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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