CVE-2026-65976 MEDIUM

CVE-2026-65976: Deskflow: Clipboard receiver can accumulate data beyond Deskflow's configured clipboard size limit

Vendor Deskflow
Product deskflow
Weakness CWE-400
Published August 17, 2026
Last update August 18, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 17, 2026 CVE published
August 18, 2026 Record updated

Related vulnerabilities

04Related CVE