# CVE-2026-30793: RustDesk Flutter URI Handler Sets Permanent Password Without Privilege Check or User Confirmation

> Attackers can exploit a CSRF flaw in the URI handler to set a permanent password without user confirmation, leading to privilege escalation and account takeover.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 Mar 2026
- **Updated:** 17 Mar 2026
- **Also known as:** GHSA-83v8-c68x-gcpr

## What is CVE-2026-30793?

CVE-2026-30793 is a critical vulnerability in rustdesk-client RustDesk Client, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Cross-Site Request Forgery (CSRF) vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Flutter URI scheme handler, FFI bridge modules) allows Privilege Escalation. This vulnerability is associated with program files flutter/lib/common.Dart, src/flutter_ffi.Rs and program routines URI handler for rustdesk://password/, bind.MainSetPermanentPassword().

This issue affects RustDesk Client: through 1.4.5.

Weakness: CWE-352 (Cross-Site Request Forgery), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-30793?

It affects 1 product.


Products: Rustdesk Rustdesk.

## How do I fix CVE-2026-30793?

No fix has been published for CVE-2026-30793 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30793 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30793 exists.

## Other vulnerabilities in rustdesk-client RustDesk Client

- [CVE-2024-25140](https://insights.sbomify.com/CVE-2024-25140/): Misconfiguration in n/a (critical 9.8)
- [CVE-2026-30797](https://insights.sbomify.com/CVE-2026-30797/): RustDesk rustdesk://config/ URI Silently Re-homes Client to Attacker-Controlled Server (critical 9.3)
- [CVE-2026-30791](https://insights.sbomify.com/CVE-2026-30791/): RustDesk Client Accepts Pseudo-Encrypted Config Strings Without Cryptographic Validation (high 8.7)
- [CVE-2026-30795](https://insights.sbomify.com/CVE-2026-30795/): RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure (high 8.7)
- [CVE-2026-30792](https://insights.sbomify.com/CVE-2026-30792/): RustDesk Client Blindly Merges Unauthenticated Strategy Payloads, Bypassing Local Security Settings (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30793 and fix it if it is affected.

What it is: CVE-2026-30793 is a critical vulnerability in rustdesk-client RustDesk Client, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30793 exists.

Affected product: rustdesk-client RustDesk Client. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-30793/ (Markdown: https://insights.sbomify.com/CVE-2026-30793/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30793
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30793
- OSV: https://osv.dev/vulnerability/CVE-2026-30793

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30793/
Summaries are generated and may contain mistakes; the official description above is the record.