What is CVE-2022-51011?

CVE-2022-51011 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-09-07.

How severe is CVE-2022-51011?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Pmmp Pocketmine-Mp

CVE-2022-51011

PocketMine-MP before 4.2.10 fails to validate the total length of incoming chat message blobs before splitting them by newline characters, allowing attackers to send large messages containing many newlines. Malicious clients can send megabyte-sized chat packets and bombard the server with thousands of such messages, causing server lockups lasting seconds or minutes.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Pmmp Pocketmine-mp

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2022-51011?: CVE-2022-51011 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-09-07.
How severe is CVE-2022-51011?: Medium severity. CVSS v3 base score is 4.3 out of 10.