# CVE-2021-23921: Missing authorization in n/a

> Broken access control allows attackers to read Password List entry elements in Devolutions Server.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-9rc2-r776-g6fx

## What is CVE-2021-23921?

CVE-2021-23921 is a critical missing authorization vulnerability in Devolutions Devolutions Server, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Devolutions Server before 2020.3. There is broken access control on Password List entry elements.

## Which versions are affected by CVE-2021-23921?

It affects 1 product.


Products: Devolutions Devolutions Server.

## How do I fix CVE-2021-23921?

No fix has been published for CVE-2021-23921 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-23921 being exploited?

There is no known exploitation of CVE-2021-23921 in the wild and no public exploit code.

## Other vulnerabilities in Devolutions Devolutions Server

- [CVE-2026-3130](https://insights.sbomify.com/CVE-2026-3130/): Business logic in Server (critical 9.8)
- [CVE-2026-3204](https://insights.sbomify.com/CVE-2026-3204/): Cross-site scripting in Server (critical 9.8)
- [CVE-2026-3224](https://insights.sbomify.com/CVE-2026-3224/): Auth bypass in Server (critical 9.8)
- [CVE-2026-0610](https://insights.sbomify.com/CVE-2026-0610/): SQL injection in Server (critical 9.8)
- [CVE-2024-2921](https://insights.sbomify.com/CVE-2024-2921/): Missing authorization in Server (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-23921 and fix it if it is affected.

What it is: CVE-2021-23921 is a critical missing authorization vulnerability in Devolutions Devolutions Server, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-23921 in the wild and no public exploit code.

Affected product: Devolutions Devolutions Server. 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-2021-23921/ (Markdown: https://insights.sbomify.com/CVE-2021-23921/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-23921
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-23921
- OSV: https://osv.dev/vulnerability/CVE-2021-23921

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-23921/
Summaries are generated and may contain mistakes; the official description above is the record.