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VulnerabilityPublished

CVE-2026-54609: Quiet-Terminal-Interactive QTINeon · Uncontrolled Resource Consumption

Affects Quiet-Terminal-Interactive QTINeonSource CVE Database V5

0

Not known to be exploited · CVSS 8.6 High.

Data as of 27 Oct 2026, 17:11 UTC

CVSS 3.1 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Quiet-Terminal-InteractiveQTINeonAffected
  • =1.0.0
Fixed in–

AI-suggested

Users should monitor vendor advisories for updates. Until a patch is released, consider implementing network-level rate limiting or filtering of RECONNECT_REQUEST packets to mitigate potential amplification attacks. Avoid exposing the relay service to untrusted networks if possible.

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.

References

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