CVE-2022-51018
PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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).
| CWE | CWE-400 |
| Vendor | pmmp |
| Product | pocketmine-mp |
| Published | Sep 7, 2026 |
| Last Updated | Sep 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
pmmp / PocketMine-MP
3.0.0 < 3.26.5 4.0.0 < 4.0.5