Cleartext Transmission of Sensitive Information vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Address book sync API modules) allows Sniffing Attacks. This vulnerability is associated with program files Closed source — API endpoint handling heartbeat sync and program routines Heartbeat API handler (accepts preset-address-book-password in plaintext). This issue affects RustDesk Server Pro: through 1.7.5.
Use CWE-319, Rustdesk vendor hub and Rustdesk Server product page to widen CVE-2026-30796 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-30790, CVE-2026-30784 and CVE-2026-3598 for nearby disclosures in the same product family.