---
id: CVE-2022-51008
title: >-
  PocketMine-MP before 4.12.3 fails to limit unauthenticated sessions, allowing
  attackers to exhaust player slots by creating sessions without sending
  LoginPacket
summary: >-
  PocketMine-MP before 4.12.3 fails to limit unauthenticated sessions, allowing
  attackers to exhaust player slots by creating sessions without sending
  LoginPacket. Attackers can flood the server with unauthenticated connections
  that occupy…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-770
vendor: pmmp
product: PocketMine-MP
affected:
  - PocketMine-MP >= 4.0.0 < 4.12.3
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-2022-51008'
references:
  - url: >-
      https://github.com/pmmp/PocketMine-MP/commit/59be901efe6b7833e69e638e0e1497051ce96fa7
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-474q-9hgp-hcvx
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/pocketmine-mp-before-4.12.3-denial-of-service-via-unauthenticated-sessions
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00291
epssPercentile: 0.19366
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-08T15:15:09.440841Z'
ingestedAt: '2026-09-07T01:02:51.921Z'
---

## Overview

PocketMine-MP before 4.12.3 fails to limit unauthenticated sessions, allowing attackers to exhaust player slots by creating sessions without sending LoginPacket. Attackers can flood the server with unauthenticated connections that occupy max-player slots, preventing legitimate players from joining.

## Remediation

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