CVE-2026-57850

Summary

RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote peer can exploit this missing scope check to act outside its granted scope, injecting out-of-scope control messages to observe and control the host beyond the permissions it was given.

Affected Software

Weaknesses

• CWE-862: Missing Authorization

References

• https://github.com/rustdesk/rustdesk/pull/15469
• https://github.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1dabc4
• https://github.com/rustdesk/rustdesk/releases/tag/1.4.9
• https://github.com/rustdesk/rustdesk

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