CVE-2021-43819Public exploitNetwork attack vector

Item duplication via delete-and-recreate teleportation

Published Apr 19, 2023 · Updated Feb 5, 2025

Improper vehicle handling in Stargate-Bukkit 0.7.9.11 through 0.11.5.0 allows remote attackers to duplicate in-game items. The legacy portal teleportation path deletes and recreates a chest minecart; on Minecraft 1.12.2 and later, deletion drops its cargo while the recreated cart retains the same contents. The issue affects the default configuration, and any player can repeat portal transit to alter game-world integrity by multiplying items.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper vehicle handling in Stargate-Bukkit 0.7.9.11 through 0.11.5.0 allows remote attackers to duplicate in-game items. The legacy portal teleportation path deletes and recreates a chest minecart; on Minecraft 1.12.2 and later, deletion drops its cargo while the recreated cart retains the same contents. The issue affects the default configuration, and any player can repeat portal transit to alter game-world integrity by multiplying items.

The record

CVE
CVE-2021-43819
Published
Apr 19, 2023
Updated
Feb 5, 2025
Vendor
Stargate Rewritten
Product
Stargate-Bukkit
Classifications
CWE-670
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.7.9.11, < 0.11.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Stargate Rewritten · Stargate-Bukkitversion=>= 0.7.9.11, < 0.11.5.1

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-670Always-Incorrect Control Flow Implementation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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