# GHSA-3fmq-x9q6-wm39: random_compat Uses insecure CSPRNG

> The random_compat library uses an insecure CSPRNG, potentially generating predictable random numbers that compromise security.

- **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:** 17 May 2024

## What is GHSA-3fmq-x9q6-wm39?

GHSA-3fmq-x9q6-wm39 is a vulnerability in paragonie/random_compat, published on 17 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

random_compat versions prior to 2.0 are affected by a security vulnerability related to the insecure usage of Cryptographically Secure Pseudo-Random Number Generators (CSPRNG). The affected versions use openssl_random_pseudo_bytes(), which may result in insufficient entropy and compromise the security of generated random numbers.

## Which versions are affected by GHSA-3fmq-x9q6-wm39?

2 open source packages ship an affected version, including paragonie/random_compat.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `paragonie/random_compat` | Packagist | All versions | 2.0 |
| `paragonie/random_compat` | Packagist | All versions | 2.0 |

## How do I fix GHSA-3fmq-x9q6-wm39?

Upgrade paragonie/random_compat to 2.0 or later.

## Is GHSA-3fmq-x9q6-wm39 being exploited?

There is no known exploitation of GHSA-3fmq-x9q6-wm39 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-3fmq-x9q6-wm39 and fix it if it is affected.

What it is: GHSA-3fmq-x9q6-wm39 is a vulnerability in paragonie/random_compat, published on 17 May 2024. 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-3fmq-x9q6-wm39 in the wild and no public exploit code.

Affected packages and fixed versions:
- paragonie/random_compat (Packagist): affected all versions; fixed in 2.0
- paragonie/random_compat (Packagist): affected all versions; fixed in 2.0

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-3fmq-x9q6-wm39/ (Markdown: https://insights.sbomify.com/GHSA-3fmq-x9q6-wm39/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-3fmq-x9q6-wm39

---
From sbomify Insights: https://insights.sbomify.com/GHSA-3fmq-x9q6-wm39/
Summaries are generated and may contain mistakes; the official description above is the record.