CVE-2026-54609: Quiet-Terminal-Interactive Qtineon

High severity, CVSS 8.6. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

Published 2026-07-28. Last modified 2026-07-30.