SB2026110849 - Multiple vulnerabilities in PocketMine-MP

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Main Vulnerability Database SB2026110849

SB2026110849 - Multiple vulnerabilities in PocketMine-MP

Published: November 8, 2026

Security Bulletin ID SB2026110849
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Enforcement of a Single, Unique Action (CVE-ID: N/A)

CWE-ID: CWE-837 - Improper Enforcement of a Single, Unique Action

CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker with low privileges to increase PocketMine-MP server memory usage and amplify outbound network traffic.

The vulnerability exists due to improper enforcement of a single completion action during resource pack handling after the server sends ResourcePackStackPacket during login. A remote attacker with low privileges can batch multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED to repeatedly advance pre-spawn processing, creating multiple players for one session and duplicating large outbound packets.


Remediation

Install update from vendor's website.

References