Vulnerability · Published Sep 7, 2026 · Assigned by VulnCheck
CVE-2022-51013PocketMine-MP before 4.2.3 Denial of Service via NBT Metadata
Medium 6.5
In plain English
A medium-severity improper input validation in PocketMine-MP from pmmp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 55.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
PocketMine-MP versions before 4.2.3 fail to validate damage metadata values in tool and armor item NBT data received from clients. Attackers can send negative or out-of-range damage values in itemstack NBT to trigger unhandled exceptions in the Durable class, causing server crashes.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | pocketmine/pocketmine-mp | 4.2.4 | GHSA-46c5-pfj8-fv65 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| pmmp | PocketMine-MP | 0 – before 4.2.3 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-46c5-pfj8-fv65) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: PocketMine-MP before 4.2.3 Denial of Service via NBT Metadata third-party-advisory