{"id":"UBUNTU-CVE-2026-65976","details":"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.","modified":"2026-08-19T13:32:32.122447281Z","published":"2026-08-17T21:16:00Z","upstream":["CVE-2026-65976"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-65976"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-65976"},{"type":"REPORT","url":"https://github.com/deskflow/deskflow/commit/8a535fd5dd48315eaaf6b93d5c7534d0592addef"},{"type":"REPORT","url":"https://github.com/deskflow/deskflow/commit/bcd3a658fc3b2ad735146fdc9efefa9462d195b7"},{"type":"REPORT","url":"https://github.com/deskflow/deskflow/security/advisories/GHSA-jf7g-qghg-p54x"}],"affected":[{"package":{"name":"deskflow","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/deskflow?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23.0+dfsg-1","1.24.0+dfsg-2","1.25.0+dfsg-2","1.25.0+dfsg-3","1.26.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.26.0+dfsg-1","binary_name":"deskflow"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-65976.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}