RustDesk before 1.5.0 on Windows fails to enforce the one-way file transfer option against peer clipboard file requests, allowing authenticated… (CVE-2026-100417)
RustDesk on Windows versions before 1.5.0 does not properly enforce the one-way file transfer setting for peer clipboard file requests. This allows authenticated peers to read files from the host clipboard by sending specific messages that request clipboard file data. The vulnerability has a low severity score and does not impact integrity or availability.
AI Analysis
Technical Summary
RustDesk before version 1.5.0 on Windows fails to enforce the one-way file transfer option when handling peer clipboard file requests. Authenticated peers can exploit this by sending FormatDataRequest and FileContentsRequest messages, guessing the FileGroupDescriptorW format identifier to retrieve files copied to the host clipboard. This issue is tracked as CVE-2026-100417 and has a CVSS v3.1 base score of 3.1, indicating low impact primarily on confidentiality.
Potential Impact
An authenticated peer can read files from the host clipboard despite the one-way file transfer restriction. This could lead to unauthorized disclosure of clipboard contents but does not affect integrity or availability.
Mitigation Recommendations
No official patch or fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict peer authentication to trusted parties and consider disabling clipboard sharing if possible.
RustDesk before 1.5.0 on Windows fails to enforce the one-way file transfer option against peer clipboard file requests, allowing authenticated… (CVE-2026-100417)
Description
RustDesk on Windows versions before 1.5.0 does not properly enforce the one-way file transfer setting for peer clipboard file requests. This allows authenticated peers to read files from the host clipboard by sending specific messages that request clipboard file data. The vulnerability has a low severity score and does not impact integrity or availability.
CVSS v3.1
Score 3.1low
Affected software
pkg:cargo/github.com/rustdesk/rustdeskRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
RustDesk before version 1.5.0 on Windows fails to enforce the one-way file transfer option when handling peer clipboard file requests. Authenticated peers can exploit this by sending FormatDataRequest and FileContentsRequest messages, guessing the FileGroupDescriptorW format identifier to retrieve files copied to the host clipboard. This issue is tracked as CVE-2026-100417 and has a CVSS v3.1 base score of 3.1, indicating low impact primarily on confidentiality.
Potential Impact
An authenticated peer can read files from the host clipboard despite the one-way file transfer restriction. This could lead to unauthorized disclosure of clipboard contents but does not affect integrity or availability.
Mitigation Recommendations
No official patch or fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict peer authentication to trusted parties and consider disabling clipboard sharing if possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wfj5-qqfr-qgmw
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-100417"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6ab74f64f7a7c54106e14e3f
Added to database: 09/26/2026, 04:51:48 UTC
Last enriched: 09/26/2026, 05:05:25 UTC
Last updated: 09/27/2026, 01:47:40 UTC
Views: 18
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