CVE-2026-54609 — QTINeon has unauthenticated relay-to-host amplification via unbounded RECONNECT_REQUEST forwarding

CVE-2026-54609

QTINeon has unauthenticated relay-to-host amplification via unbounded RECONNECT_REQUEST forwarding PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
Quiet-Terminal-Interactive / QTINeon	affected 1.0.0

CWE

CWE-400, CWE-406, CWE-770

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.