Vulnerability Description
RustDesk versions before 1.5.0 fail to properly validate file transfer permissions on incoming file clipboard messages in the Cliprdr message handler on Linux and macOS. Authenticated remote peers with disabled file transfer permissions can place files onto the host clipboard and retrieve copied files and contents from the process-wide clipboard cache.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/rustdesk/rustdesk
- https://github.com/rustdesk/rustdesk/blob/1.4.9/src/server/connection.rs#L3074-L
- https://github.com/rustdesk/rustdesk/commit/f299fb9906006247863250d7dfaa016f29ee
- https://github.com/rustdesk/rustdesk/pull/16333
- https://www.vulncheck.com/advisories/rustdesk-before-1.5.0-missing-authorization
FAQ
What is CVE-2026-100388?
CVE-2026-100388 is a vulnerability with a CVSS score of 5.4 (MEDIUM). RustDesk versions before 1.5.0 fail to properly validate file transfer permissions on incoming file clipboard messages in the Cliprdr message handler on Linux and macOS. Authenticated remote peers wit...
How severe is CVE-2026-100388?
CVE-2026-100388 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100388?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.