CVE-2021-43819: Stargate-Bukkit is a mod for the minecraft video game which adds a portal focused environment

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HIGH 7.5REMOTEUPGRADE

CVE-2021-43819 is a high-severity flaw (CVSS 7.5) affecting stargate-bukkit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-670
Published	2023-04-19
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: stargate-bukkit project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-19 18:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

stargate-bukkit project stargate-bukkit UPGRADE

Affected: >= 0.7.9.11 and < 0.11.5.1

Fixed in: 0.11.5.1

Safe to downgrade to: a release before 0.7.9.11

1. Check installed version

apt-cache policy stargate-bukkit || rpm -q stargate-bukkit || stargate-bukkit --version

2. UPGRADE to 0.11.5.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stargate-bukkit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stargate-bukkit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.7.9.11 (Debian / Ubuntu)

apt-cache madison stargate-bukkit sudo apt install stargate-bukkit=<VERSION_BEFORE_0.7.9.11> sudo apt-mark hold stargate-bukkit

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list stargate-bukkit sudo dnf downgrade stargate-bukkit-<VERSION_BEFORE_0.7.9.11> sudo dnf versionlock add stargate-bukkit

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-43819?

stargate-bukkit: upgrade to 0.11.5.1. Exact commands for each OS are on this page.

Is CVE-2021-43819 being exploited?

CVE-2021-43819 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-43819 affect?

CVE-2021-43819 affects stargate-bukkit. Severity is high (CVSS 7.5). 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 thei

How urgent is CVE-2021-43819?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

References

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