CVE-2026-100388

Medium

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductRustdesk

PublishedSep 25, 2026

First seenSep 25, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

rustdesk rustdesk1.5.0 or later

Patches

github.com/rustdesk/rustdesk/pull/16333
github.com/rustdesk/rustdesk/commit/f299fb9906006247863250d7dfaa016f29eef7a4

Affected products

Product	Affected versions	Fixed in
rustdesk rustdesk	v < 1.5.0	1.5.0

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