CVE-2026-41476
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-41476
Vendor advisory: security-advisories@github.com — https://github.com/deskflow/deskflow/security/advisories/GHSA-3jp5-g964-cgmh
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | forky | fixed | 1.26.0+dfsg-2 |
| debian | sid | fixed | 1.26.0+dfsg-2 |
| debian | trixie | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| deskflow | deskflow | {"endExcluding":"1.26.0.138"} | 1.26.0.138 |
References
CWEs
CWE-120
Verify integrity in audit chain (admin only). AS-IS.