Vulnerability · Published Sep 7, 2026 · Assigned by VulnCheck

CVE-2022-51011PocketMine-MP before 4.2.10 Denial of Service via Chat Messages

Medium 4.3

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 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.5%top 60.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	pocketmine/pocketmine-mp	4.2.10	GHSA-gj94-v4p9-w672

Affected products (as reported)

Vendor	Product	Versions
pmmp	PocketMine-MP	0 – before 4.2.10

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

GitHub Security Advisory (GHSA-gj94-v4p9-w672) vendor-advisory
Patch Commit patch
VulnCheck Advisory: PocketMine-MP before 4.2.10 Denial of Service via Chat Messages third-party-advisory