Medium severity · published Sep 7, 2026
CVE-2022-51013
PocketMine-MP before 4.2.3 Denial of Service via NBT Metadata
6.5
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PO
PocketMine-MP · pmmp
before 4.2.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-51013
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-51013
vendor-advisory
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-46c5-pfj8-fv65
patch
https://github.com/pmmp/PocketMine-MP/commit/c8e1cfcbee4945fd4b63d2a7e96025c59744d4f1
third-party-advisory
https://www.vulncheck.com/advisories/pocketmine-mp-before-4.2.3-denial-of-service-via-nbt-metadata
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