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.

Scoring

Severity
MEDIUM
CVSS base score
5.3
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS probability
0.43%
CWE
CWE-20
Published
2026-09-07
Last modified
2026-09-10

Affected products

Weakness type

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