Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
Quiet-Terminal-Interactive QTINeon
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Quiet Terminal Interactive QTI Neon是Quiet Terminal Interactive组织开源的一款终端交互组件。 Quiet Terminal Interactive QTI Neon 1.0.0版本存在资源管理错误漏洞，该漏洞源于relay的handleReconnectRequest未对RECONNECT_REQUEST包进行限制，导致未经身份验证的客户端可以驱动relay-to-host放大，造成拒绝服务。

CVSS 8.6 · High EPSS 0.26% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
Quiet-Terminal-Interactive QTINeon 1.0.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-54609

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
QTINeon has unauthenticated relay-to-host amplification via unbounded RECONNECT_REQUEST forwarding
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Quiet Terminal Interactive QTI Neon 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Quiet Terminal Interactive QTI Neon是Quiet Terminal Interactive组织开源的一款终端交互组件。 Quiet Terminal Interactive QTI Neon 1.0.0版本存在资源管理错误漏洞，该漏洞源于relay的handleReconnectRequest未对RECONNECT_REQUEST包进行限制，导致未经身份验证的客户端可以驱动relay-to-host放大，造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Quiet-Terminal-Interactive QTINeon 1.0.0 -

II. Public POCs for CVE-2026-54609

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11130 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-54609

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-54609 (1)

IV. Related Vulnerabilities

Same weakness: CWE-400

V. Comments for CVE-2026-54609

No comments yet

Leave a comment