# GHSA-3hwm-922r-47hw: Stud42 vulnerable to denial of service

> An attacker can crash the s42.app API by sending large payloads to the GraphQL parser, causing a denial of service for all users.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 31 Mar 2023

## What is GHSA-3hwm-922r-47hw?

GHSA-3hwm-922r-47hw is a denial of service vulnerability in atomys.codes/stud42, published on 31 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A security vulnerability has been identified in the GraphQL parser used by the API of s42.app. An attacker can overload the parser and cause the API pod to crash. With a bit of threading, the attacker can bring down the entire API, resulting in an unhealthy stream. This vulnerability can be exploited by sending a specially crafted request to the API with a large payload.

An attacker can exploit this vulnerability to cause a denial of service (DoS) attack on the s42.app API, resulting in unavailability of the API for legitimate users.

## Which versions are affected by GHSA-3hwm-922r-47hw?

2 open source packages ship an affected version, including atomys.codes/stud42.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `atomys.codes/stud42` | Go | All versions | 0.23.0 |
| `atomys.codes/stud42` | Go | All versions | 0.23.0 |

## How do I fix GHSA-3hwm-922r-47hw?

Upgrade atomys.codes/stud42 to 0.23.0 or later.

## Is GHSA-3hwm-922r-47hw being exploited?

There is no known exploitation of GHSA-3hwm-922r-47hw in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-3hwm-922r-47hw and fix it if it is affected.

What it is: GHSA-3hwm-922r-47hw is a denial of service vulnerability in atomys.codes/stud42, published on 31 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of GHSA-3hwm-922r-47hw in the wild and no public exploit code.

Affected packages and fixed versions:
- atomys.codes/stud42 (Go): affected all versions; fixed in 0.23.0
- atomys.codes/stud42 (Go): affected all versions; fixed in 0.23.0

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/GHSA-3hwm-922r-47hw/ (Markdown: https://insights.sbomify.com/GHSA-3hwm-922r-47hw/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-3hwm-922r-47hw

---
From sbomify Insights: https://insights.sbomify.com/GHSA-3hwm-922r-47hw/
Summaries are generated and may contain mistakes; the official description above is the record.