CVE-2026-73102 RustDesk Path Traversal via macOS Clipboard File-Paste
A remote peer can write files outside the intended directory via path traversal in RustDesk's macOS clipboard file-paste feature.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-73102?
CVE-2026-73102 is a medium-severity path traversal vulnerability in rustdesk, published on 26 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
RustDesk versions 1.3.9 through 1.4.9 contain a path traversal vulnerability in the macOS clipboard file-paste code path. The application accepts peer-supplied file descriptor names and joins them to the selected target directory without requiring normalized relative paths. A remote peer in an active clipboard file-paste session can use parent-directory components or absolute paths to write files outside the intended target directory at locations writable by the RustDesk process. Commit 6f1eb16 fixes the issue by validating descriptor names and safely joining paths.
Weakness: CWE-22
Which versions are affected by CVE-2026-73102?
How do I fix CVE-2026-73102?
No fix has been published for CVE-2026-73102 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-73102 being exploited?
There is no known exploitation of CVE-2026-73102 in the wild and no public exploit code.
Sources
Also known as GHSA-w982-6rqp-v5xg.