---
id: CVE-2026-100388
title: >-
  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
summary: >-
  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 …
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-862
vendor: rustdesk
product: rustdesk
affected:
  - rustdesk < 1.5.0
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T21:17:22.440'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100388'
references:
  - url: 'https://github.com/rustdesk/rustdesk'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rustdesk/rustdesk/blob/1.4.9/src/server/connection.rs#L3074-L3092
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rustdesk/rustdesk/commit/f299fb9906006247863250d7dfaa016f29eef7a4
    label: disclosure@vulncheck.com
  - url: 'https://github.com/rustdesk/rustdesk/pull/16333'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/rustdesk-before-1.5.0-missing-authorization-check-on-incoming-file-clipboard-messages
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T21:19:40.142Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.