Bug 2517644 (CVE-2026-65976) - CVE-2026-65976 deskflow: Deskflow: Denial of Service due to excessive clipboard data accumulation
Summary: CVE-2026-65976 deskflow: Deskflow: Denial of Service due to excessive clipboa...
Keywords:
Status: NEW
Alias: CVE-2026-65976
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2521883 2521885
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-17 21:12 UTC by OSIDB Bzimport
Modified: 2026-08-24 13:24 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-08-17 21:12:02 UTC
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.


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