Description
PocketMine-MP versions prior to 4.18.1 contain an improper input validation vulnerability in inventory transaction handling. A remote attacker with a valid player session can request that the server drop more items than are available in the player's hotbar, triggering a server crash and resulting in denial of service.
Metrics
CVSS 4.0 7.1/10
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| pmmp | PocketMine-MP | < 4.18.1 |
References
- https://github.com/pmmp/PocketMine-MP/blob/4.18.1/changelogs/4.18.md
- https://github.com/pmmp/PocketMine-MP/commit/5897476
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h87r-f4vc-mchv
- https://www.vulncheck.com/advisories/pocketmine-mp-improper-validation-of-dropped-item-count-allows-remote-server-crash
Timeline
- Published
- Dec 31, 2025
- Last modified
- Oct 8, 2026
- NVD status
- Deferred