GHSA-83jc-7j6x-wvj9
RustDesk versions before 1.4.9 have a vulnerability where the server does not enforce the authorized connection scope for sessions. This allows a peer with a limited session type (such as FileTransfer, PortForward, ViewCamera, or Terminal) to send control messages and login options intended only for full Remote sessions. An authenticated remote peer can exploit this to perform actions beyond their granted permissions, potentially observing and controlling the host improperly.
AI Analysis
Technical Summary
The vulnerability in RustDesk prior to version 1.4.9 arises from missing enforcement of session scope on the server side. Peers granted limited session types can bypass restrictions by injecting control messages reserved for full Remote sessions. This flaw enables an authenticated remote peer to escalate their privileges within the session, violating the intended access controls and potentially compromising host confidentiality and integrity.
Potential Impact
An authenticated remote attacker with a limited session can perform unauthorized actions beyond their granted scope, including sending control messages and login options reserved for full Remote sessions. This can lead to unauthorized observation and control of the host system, violating access control policies and potentially exposing sensitive information or enabling further compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted peers only and monitor for unusual session behaviors. Avoid granting limited session types to untrusted users.
GHSA-83jc-7j6x-wvj9
Description
RustDesk versions before 1.4.9 have a vulnerability where the server does not enforce the authorized connection scope for sessions. This allows a peer with a limited session type (such as FileTransfer, PortForward, ViewCamera, or Terminal) to send control messages and login options intended only for full Remote sessions. An authenticated remote peer can exploit this to perform actions beyond their granted permissions, potentially observing and controlling the host improperly.
CVSS v4.0
Affected software
pkg:cargo/github/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
The vulnerability in RustDesk prior to version 1.4.9 arises from missing enforcement of session scope on the server side. Peers granted limited session types can bypass restrictions by injecting control messages reserved for full Remote sessions. This flaw enables an authenticated remote peer to escalate their privileges within the session, violating the intended access controls and potentially compromising host confidentiality and integrity.
Potential Impact
An authenticated remote attacker with a limited session can perform unauthorized actions beyond their granted scope, including sending control messages and login options reserved for full Remote sessions. This can lead to unauthorized observation and control of the host system, violating access control policies and potentially exposing sensitive information or enabling further compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted peers only and monitor for unusual session behaviors. Avoid granting limited session types to untrusted users.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-83jc-7j6x-wvj9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-57850"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6a520eac68715ace438f4a6a
Added to database: 07/11/2026, 09:36:44 UTC
Last enriched: 07/11/2026, 09:46:54 UTC
Last updated: 07/11/2026, 19:47:31 UTC
Views: 2
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