CVE-2026-54609

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.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/Quiet-Terminal-Interactive/QTINeon/security/advisories/GHSA-85rg-p3fr-xc2f

Configurations

No configuration.

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) QTI Neon es una biblioteca de protocolo multijugador UDP mínima, agnóstica de juegos y basada en retransmisión. En la versión 1.0.0, la función handleReconnectRequest del retransmisor reenvía paquetes RECONNECT_REQUEST al anfitrión sin limitarlos, por lo que un cliente no autenticado puede impulsar la amplificación de retransmisor a anfitrión y causar una denegación de servicio en el anfitrión. No hay una versión corregida disponible a la fecha de esta revisión.

Information

Published : 2026-07-28 17:16

Updated : 2026-10-23 23:10

NVD link : CVE-2026-54609

Mitre link : CVE-2026-54609

CVE.ORG link : CVE-2026-54609

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-406

Insufficient Control of Network Message Volume (Network Amplification)

CWE-770

Allocation of Resources Without Limits or Throttling

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