# CVE-2022-2321: Improper Restriction of Excessive Authentication Attempts in heroiclabs/nakama

> Attackers can bypass login attempt restrictions to perform brute-force attacks and take over user accounts on Nakama game servers.

- **Severity:** High 7.5 (`CVSS:3.0/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:** 5 Jul 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-8r94-4h3c-939f

## What is CVE-2022-2321?

CVE-2022-2321 is a high-severity vulnerability in heroiclabs/nakama, published on 5 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Restriction of Excessive Authentication Attempts in GitHub repository heroiclabs/nakama prior to 3.13.0. This results in login brute-force attacks.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2022-2321?

2 open source packages ship an affected version, including github.com/heroiclabs/nakama/v3. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/heroiclabs/nakama/v3` | Go | All versions to 3.12.0 | None |
| `github.com/heroiclabs/nakama/v3` | Go | All versions to 3.12.0 | None |

Products: Heroiclabs Nakama.

## How do I fix CVE-2022-2321?

No fix has been published for CVE-2022-2321 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-2321 being exploited?

There is no known exploitation of CVE-2022-2321 in the wild and no public exploit code.

## Other vulnerabilities in heroiclabs/nakama

- [CVE-2022-2306](https://insights.sbomify.com/CVE-2022-2306/): Insufficient Session Expiration in heroiclabs/nakama (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2321 and fix it if it is affected.

What it is: CVE-2022-2321 is a high-severity vulnerability in heroiclabs/nakama, published on 5 Jul 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-2022-2321 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/heroiclabs/nakama/v3 (Go): affected all versions up to 3.12.0; no fix listed
- github.com/heroiclabs/nakama/v3 (Go): affected all versions up to 3.12.0; 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-2022-2321/ (Markdown: https://insights.sbomify.com/CVE-2022-2321/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2321
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2321
- OSV: https://osv.dev/vulnerability/CVE-2022-2321

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2321/
Summaries are generated and may contain mistakes; the official description above is the record.