CVE-2022-51018PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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).
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-400
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
pmmp PocketMine-MP pmmp:pocketmine_mp (from the name) | from 3.0.0 before 3.26.5; 3.26.5 not affected; from 4.0.0 before 4.0.5; 4.0.5 not affected | CNA record |
References
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-p62j-hrxm-xcxfvendor-advisory
- https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-input-validation-via-book-pagesthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.