# CVE-2026-3598: RustDesk Server Generates Config Strings Using Reversible Encoding (Base64 + Reverse) Instead of Encryption

> Attackers can retrieve embedded sensitive data from RustDesk Server Pro because config strings use reversible encoding instead of encryption.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Mar 2026
- **Updated:** 6 Mar 2026
- **Also known as:** GHSA-8f92-r334-42wm

## What is CVE-2026-3598?

CVE-2026-3598 is a high-severity vulnerability in rustdesk-server-pro RustDesk Server Pro, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Config string generation, web console export modules) allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program routines Config export/generation routines.

This issue affects RustDesk Server Pro: through 1.7.5.

Weakness: CWE-684 (Incorrect Provision of Specified Functionality), CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)

## Which versions are affected by CVE-2026-3598?

It affects 1 product.


Products: Rustdesk Rustdesk Server.

## How do I fix CVE-2026-3598?

No fix has been published for CVE-2026-3598 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3598 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3598 exists.

## Other vulnerabilities in rustdesk-server-pro RustDesk Server Pro

- [CVE-2026-30796](https://insights.sbomify.com/CVE-2026-30796/): RustDesk Client Transmits Preset Address Book Password Verbatim in Heartbeat Sync (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3598 and fix it if it is affected.

What it is: CVE-2026-3598 is a high-severity vulnerability in rustdesk-server-pro RustDesk Server Pro, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3598 exists.

Affected product: rustdesk-server-pro RustDesk Server Pro. 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-2026-3598/ (Markdown: https://insights.sbomify.com/CVE-2026-3598/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3598
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3598
- OSV: https://osv.dev/vulnerability/CVE-2026-3598

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3598/
Summaries are generated and may contain mistakes; the official description above is the record.