# CVE-2021-45851: Server-Side Request Forgery in FUXA

> An SSRF vulnerability in FUXA allows attackers to access internal server information and potentially execute commands on the server.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 16 Mar 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-9vp3-7qwq-83r9

## What is CVE-2021-45851?

CVE-2021-45851 is a high-severity server-side request forgery vulnerability in n/a, published on 16 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Server-Side Request Forgery (SSRF) attack in FUXA 1.1.3 can be carried out leading to the obtaining of sensitive information from the server's internal environment and services, often potentially leading to the attacker executing commands on the server.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2021-45851?

2 open source packages ship an affected version, including @frangoteam/fuxa. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@frangoteam/fuxa` | npm | All versions to 1.1.3 | None |
| `@frangoteam/fuxa` | npm | All versions to 1.1.3 | None |

Products: Frangoteam Fuxa.

## How do I fix CVE-2021-45851?

No fix has been published for CVE-2021-45851 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45851 being exploited?

There is no known exploitation of CVE-2021-45851 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-25893](https://insights.sbomify.com/CVE-2026-25893/): FUXA Unauthenticated Remote Code Execution via Admin JWT Minting (critical 10.0)
- [CVE-2025-69985](https://insights.sbomify.com/CVE-2025-69985/): FUXA has JWT Authentication Bypass via HTTP Referer header spoofing (critical 9.8)
- [CVE-2025-69971](https://insights.sbomify.com/CVE-2025-69971/): FUXA has a hardcoded fallback JWT signing secret (critical 9.8)
- [CVE-2023-31719](https://insights.sbomify.com/CVE-2023-31719/): FUXA SQL Injection vulnerability (critical 9.8)
- [CVE-2023-33831](https://insights.sbomify.com/CVE-2023-33831/): A remote command execution (RCE) vulnerability in the /api/runscript endpoint of FUXA (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45851 and fix it if it is affected.

What it is: CVE-2021-45851 is a high-severity server-side request forgery vulnerability in n/a, published on 16 Mar 2022. 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-2021-45851 in the wild and no public exploit code.

Affected packages and fixed versions:
- @frangoteam/fuxa (npm): affected all versions up to 1.1.3; no fix listed
- @frangoteam/fuxa (npm): affected all versions up to 1.1.3; no fix listed

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-2021-45851/ (Markdown: https://insights.sbomify.com/CVE-2021-45851/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45851
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45851
- OSV: https://osv.dev/vulnerability/CVE-2021-45851

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45851/
Summaries are generated and may contain mistakes; the official description above is the record.