{"id":"UBUNTU-CVE-2026-41476","details":"Deskflow is a keyboard and mouse sharing app.  Prior to 1.26.0.138, a remote memory-safety vulnerability in Deskflow's clipboard deserialization allows a connected peer to trigger an out-of-bounds read by sending a malformed clipboard update. The issue is in the implementation of src/lib/deskflow/IClipboard.cpp. This is reachable because ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp validates only the outer clipboard transfer size. It does not validate the internal structure of the serialized clipboard blob, so malformed inner lengths reach IClipboard::unmarshall() unchanged. This vulnerability is fixed in 1.26.0.138.","modified":"2026-05-20T16:25:41.439714790Z","published":"2026-04-24T20:16:00Z","upstream":["CVE-2026-41476"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-41476"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-41476"},{"type":"REPORT","url":"https://github.com/deskflow/deskflow/security/advisories/GHSA-3jp5-g964-cgmh"}],"affected":[{"package":{"name":"deskflow","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/deskflow?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.1+dfsg-1","1.21.2+dfsg-1","1.22.0+dfsg-2","1.22.0+dfsg-3","1.22.0+dfsg-4","1.22.0+dfsg-6","1.22.0+dfsg-7","1.23.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"deskflow","binary_version":"1.23.0+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41476.json"}},{"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_name":"deskflow","binary_version":"1.26.0+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41476.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}