---
id: CVE-2026-51106
title: >-
  An issue in TokTok qTox v1.18.4 allows a local attacker to cause a denial of
  service via the src/persistence/serialize.cpp component
summary: >-
  An issue in TokTok qTox v1.18.4 allows a local attacker to cause a denial of
  service via the src/persistence/serialize.cpp component
severity: critical
cvss: 9.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-400
  - CWE-502
published: '2026-08-26'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:04:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-51106'
references:
  - url: 'https://github.com/TokTok/qTox/issues/706'
    label: cve@mitre.org
  - url: 'https://github.com/TokTok/qTox/issues/706'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00402
epssPercentile: 0.31764
ingestedAt: '2026-09-09T16:14:05.515Z'
---

## Overview

An issue in TokTok qTox v1.18.4 allows a local attacker to cause a denial of service via the src/persistence/serialize.cpp component

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.