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/deskfl
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 continuo
Affected packages
- deskflow
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://www.cve.org/CVERecord?id=CVE-2026-65976
- https://github.com/deskflow/deskflow/commit/8a535fd5dd48315eaaf6b93d5c7534d0592addef
- https://github.com/deskflow/deskflow/commit/bcd3a658fc3b2ad735146fdc9efefa9462d195b7
- https://github.com/deskflow/deskflow/security/advisories/GHSA-jf7g-qghg-p54x
Structured record: https://ubuntu.com/security/CVE-2026-65976
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