---
id: CVE-2020-37277
title: >-
  PocketMine-MP versions before 3.15.4 contain a denial of service vulnerability
  in the InventoryTransaction component's findResultItem() method
summary: >-
  PocketMine-MP versions before 3.15.4 contain a denial of service vulnerability
  in the InventoryTransaction component's findResultItem() method. Malicious
  clients can send specially crafted InventoryTransactionPackets with multiple
  confli…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: pmmp
product: PocketMine-MP
affected:
  - PocketMine-MP < 3.15.4
published: '2026-09-06'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:05:53.177'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-37277'
references:
  - url: >-
      https://github.com/pmmp/PocketMine-MP/commit/c368ebb5e74632bc622534b37cd1447b97281e20
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-8jq6-w5cg-wm45
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/pocketmine-mp-before-3.15.4-denial-of-service-via-inventorytransaction
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00295
epssPercentile: 0.19678
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T13:27:34.190182Z'
ingestedAt: '2026-09-07T00:02:13.800Z'
---

## Overview

PocketMine-MP versions before 3.15.4 contain a denial of service vulnerability in the InventoryTransaction component's findResultItem() method. Malicious clients can send specially crafted InventoryTransactionPackets with multiple conflicting pathways to cause exponential processing complexity, freezing the server.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.