CVE-2022-51018
CVE-2022-51018
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).
Vulnerability class: DoS (Denial of Service)
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2022-51018?
- CVE-2022-51018 is a medium-severity vulnerability, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-09-07.
- How severe is CVE-2022-51018?
- Medium severity. CVSS v3 base score is 6.5 out of 10.