# CVE-2021-43819: Stargate-Bukkit improperly handles vehicles causing data duplication.

> Attackers can duplicate items by teleporting minecarts through portals, compromising game economy integrity in Stargate-Bukkit servers.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:** 19 Apr 2023
- **Updated:** 5 Feb 2025
- **Also known as:** GHSA-64r2-hfr9-849j

## What is CVE-2021-43819?

CVE-2021-43819 is a high-severity vulnerability in Stargate-Bukkit, published on 19 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Stargate-Bukkit is a mod for the minecraft video game which adds a portal focused environment. In affected versions Minecarts with chests will drop their items when teleporting through a portal; when they reappear, they will still have their items impacting the integrity of the game world. The teleport code has since been rewritten and is available in release `0.11.5.1`. Users are advised to upgrade. There are no known workarounds for this issue.

Weakness: CWE-670 (Always-Incorrect Control Flow Implementation)

## Which versions are affected by CVE-2021-43819?

It affects 1 product.


Products: Stargate-Bukkit Project Stargate-Bukkit.

## How do I fix CVE-2021-43819?

No fix has been published for CVE-2021-43819 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43819 being exploited?

There is no known exploitation of CVE-2021-43819 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43819 and fix it if it is affected.

What it is: CVE-2021-43819 is a high-severity vulnerability in Stargate-Bukkit, published on 19 Apr 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 CVE-2021-43819 in the wild and no public exploit code.

Affected product: Stargate-Bukkit. 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-2021-43819/ (Markdown: https://insights.sbomify.com/CVE-2021-43819/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43819
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43819
- OSV: https://osv.dev/vulnerability/CVE-2021-43819

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43819/
Summaries are generated and may contain mistakes; the official description above is the record.