Vulnerability · Published Aug 26, 2026 · Assigned by VulnCheck

CVE-2026-73102RustDesk Path Traversal via macOS Clipboard File-Paste

Medium 5.7

In plain English

A medium-severity path traversal in rustdesk from rustdesk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)5.7Medium

Exploit odds (30 days)0.4%top 66.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
rustdesk	rustdesk	1.3.9 – through 1.4.9

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

References

Pull Request issue-tracking, patch
Patch Commit patch
https://www.vulncheck.com/advisories/rustdesk-path-traversal-via-macos-clipboard-file-paste third-party-advisory