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CVE Record

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

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.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This affects Minecraft servers running Stargate-Bukkit. A vehicle inventory handling flaw can duplicate chest minecart items during portal teleportation, undermining game-world integrity and economies. It is not described as data theft or service outage. The vendor advisory says the teleport code was rewritten in release 0.11.5.1 and users should upgrade.

Executive priority

Prioritize remediation for public or player-economy servers because integrity abuse can damage trust, fairness, and administrative workload. For internal or unused servers, urgency is lower but upgrade remains the only source-supported fix.

Technical view

Stargate-Bukkit versions 0.7.9.11 through before 0.11.5.1 improperly handle minecarts with chests during portal teleportation. Items may drop during teleport while remaining in the vehicle after reappearance, creating duplication. The record maps this to CWE-670 and CVSS 3.1 score 7.5 with high integrity impact only.

Likely exposure

Exposure is limited to Minecraft servers using Stargate-Bukkit versions >= 0.7.9.11 and < 0.11.5.1. Organizations not operating this plugin are not affected based on the supplied sources.

Exploitation context

The supplied sources do not report active exploitation, and this CVE is not marked in KEV. The issue is practically relevant where untrusted or competitive users can interact with Stargate-Bukkit portals and vehicle inventories.

Researcher notes

Evidence is narrow and clear: the impact is item duplication from vehicle teleport handling, not confidentiality or availability compromise. The public bundle names no exploit activity and no workaround. Keep validation focused on version exposure and operational signs of duplicated items.

Mitigation direction

  • Upgrade Stargate-Bukkit to release 0.11.5.1 or later.
  • Confirm every server node runs the corrected plugin version.
  • Review the GitHub advisory for any newer vendor guidance.
  • If upgrade is delayed, document that no source-supported workaround is available.

Validation and detection

  • Inventory Minecraft servers for installed Stargate-Bukkit versions.
  • Flag versions >= 0.7.9.11 and < 0.11.5.1 as vulnerable.
  • Confirm patched servers report Stargate-Bukkit 0.11.5.1 or later.
  • Review game economy or inventory logs for unexplained item duplication.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-670: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-43819 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2021-43819Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
stargate-bukkitStargate-Bukkit>= 0.7.9.11, < 0.11.5.1Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-670 · source CWE mapping

Always-Incorrect Control Flow Implementation

Always-Incorrect Control Flow Implementation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.