---
id: CVE-2026-86198
title: >-
  PocketMine-MP versions before 5.44.2 fail to properly validate multiple
  ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during
  resource pack handling
summary: >-
  PocketMine-MP versions before 5.44.2 fail to properly validate multiple
  ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during
  resource pack handling. Malicious clients can send batches of these packets to
  repeatedl…
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-837
vendor: pmmp
product: PocketMine-MP
affected:
  - PocketMine-MP < 5.44.2
published: '2026-09-09'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T15:17:50.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86198'
references:
  - url: >-
      https://github.com/pmmp/PocketMine-MP/commit/7a27894146a04964ab628ed9033140fdbf887ff3
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pg53-p7qp-65cv
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/pocketmine-mp-before-5.44.2-denial-of-service-via-resourcepackclientresponsepacket
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T14:18:48.064572Z'
ingestedAt: '2026-09-14T12:27:58.923Z'
epss: 0.00382
epssPercentile: 0.29369
---

## Overview

PocketMine-MP versions before 5.44.2 fail to properly validate multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during resource pack handling. Malicious clients can send batches of these packets to repeatedly trigger pre-spawn progression, creating duplicate Player objects and amplifying memory consumption and network traffic.

## Remediation

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