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CVE-2026-100388— RustDesk before 1.5.0 Missing Authorization Check on Incoming File Clipboard Messages

Quick assessment

Affected
rustdesk rustdesk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 RustDesk 1.5.0 之前的版本中，Linux 和 macOS 平台上的 Cliprdr 消息处理器未能正确验证传入文件剪贴板消息中的文件传输权限。具备身份验证的远程对等端即使被禁用了文件传输权限，仍可将文件放置到主机剪贴板，并从中断进程范围的剪贴板缓存中读取已复制的文件及其内容。

CVSS 5.4 · Medium EPSS 0.18% · P7

Affected Version Matrix 2

VendorProduct Version RangeStatus
rustdesk rustdesk < 1.5.0 affected
1.5.0 unaffected
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I. Basic Information for CVE-2026-100388

Vulnerability Information
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Vulnerability Title
RustDesk before 1.5.0 Missing Authorization Check on Incoming File Clipboard Messages
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rustdesk rustdesk 0 ~ 1.5.0 -

II. Public POCs for CVE-2026-100388

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III. Intelligence Information for CVE-2026-100388

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Patches & Fixes for CVE-2026-100388 (2)

Vendor Advisories for CVE-2026-100388 (1)

Vendor Pages for CVE-2026-100388 (1)

IV. Related Vulnerabilities

Same product: rustdesk
Same vendor: rustdesk
Same weakness: CWE-862

V. Comments for CVE-2026-100388

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