CVE-2026-65976 PUBLISHED

Deskflow: Clipboard receiver can accumulate data beyond Deskflow's configured clipboard size limit

Assigner: GitHub_M
Reserved: 23.07.2026 Published: 17.08.2026 Updated: 17.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Product Status

Vendor deskflow
Product deskflow
Versions
  • Version >= 1.17.0, < 1.26.0.300 is affected

References

Problem Types

  • CWE-400: Uncontrolled Resource Consumption CWE