---
id: CVE-2026-65976
title: Deskflow is a keyboard and mouse sharing app
summary: >-
  Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous
  build 1.26.0.300, a connected peer can send repeated DCLP DataChunk messages
  to ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp, causing
  the ser…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
published: '2026-08-17'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:11:46.833'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65976'
references:
  - url: >-
      https://github.com/deskflow/deskflow/commit/8a535fd5dd48315eaaf6b93d5c7534d0592addef
    label: security-advisories@github.com
  - url: >-
      https://github.com/deskflow/deskflow/commit/bcd3a658fc3b2ad735146fdc9efefa9462d195b7
    label: security-advisories@github.com
  - url: >-
      https://github.com/deskflow/deskflow/security/advisories/GHSA-jf7g-qghg-p54x
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00452
epssPercentile: 0.36544
ingestedAt: '2026-09-09T21:22:45.536Z'
---

## Overview

Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.300, a connected peer can send repeated DCLP DataChunk messages to ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp, causing the server path in src/lib/server/ClientProxy1_6.cpp or client path in src/lib/client/ServerProxy.cpp to append data beyond the DataStart declared size and configured clipboard limit before DataEnd validation, exhausting receiver memory. This issue is fixed in continuous build 1.26.0.300.

## Remediation

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