RustDesk before 1.5.0 Missing Authorization Check on Incoming File Clipboard Messages
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
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 can place files onto the host clipboard and retrieve copied files and contents from the process-wide clipboard cache.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| rustdesk-client | rustdesk | before 1.5.0 | 1.5.0 | Patch available | CNA |
- rustdesk Vendorrustdesk-client Affected before 1.5.0 Fixed in 1.5.0 Patch available CNA
Remediation
- Fix · CNA rustdesk (rustdesk) Fixed in 1.5.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
rustdesk 1.5.0
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-64666 RustDesk before 1.5.0 One-Way File Transfer BypassPriority LOW 11
Timeline
- 2026-10-02 Threatist record created from CVE-2026-100388
- 2026-10-03 Alias added: GHSA-mr3p-q22v-cr79
References
More rustdesk-client vulnerabilities
- TI-2024-16591 A default installation of RustDesk 1.2.3 on Windows places a WDKTestCert certificate… CVSS 3.1CRITICAL 9.8
- TI-2026-23626 RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure CVSS 4.0HIGH 8.7
- TI-2026-23624 RustDesk Client Blindly Merges Unauthenticated Strategy Payloads, Bypassing Local Security Settings CVSS 4.0HIGH 8.3
- TI-2026-23621 RustDesk Encrypts Local Passwords with World-Readable Machine ID and Fixed Zero Nonce (XSalsa20-Poly1305) CVSS 4.0HIGH 8.2
- TI-2026-03102 RustDesk Server Generates Config Strings Using Reversible Encoding (Base64 + Reverse) Instead of Encryption CVSS 4.0HIGH 8.7
- TI-2026-23629 RustDesk Client Accepts Unauthenticated stop-service Command via Strategy Payload CVSS 4.0HIGH 8.2
Sources
- CVE-2026-100388 · CVE Program
- CVE-2026-100388 · NVD
- FIRST EPSS
- GHSA-mr3p-q22v-cr79 · GitHub Advisory Database · CC BY 4.0
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