CVE-2022-51018

MEDIUMCVSS 6.5

Description

PocketMine-MP before 3.26.5 and 4.0.x before 4.0.5 does not limit book page text length, page count, or author/title length. A player who obtains a writable book can create oversized NBT ('book bombs'), causing excess bandwidth consumption and server crashes (exceeding the 1 MB chunk size limit when saving region-based worlds in PM3, or exceeding the 32 KiB TAG_String limit in PM4).

Timeline

Published:September 7th, 2026 1:17 PM

Last modified:September 8th, 2026 7:59 PM

CVSS Scoring

CVSS v3: 6.5 (MEDIUM)

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

Weaknesses (CWE)

CWE-400

References & Reports

Advisories, patches, and third-party reports

https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-p62j-hrxm-xcxf
https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pages

Source: NIST NVD · Data may lag official sources by up to one minute