Vulnerability · Published Sep 9, 2026 · Assigned by VulnCheck

CVE-2026-86202PocketMine-MP before 5.39.2 Network Amplification via ActorEventPacket

Medium 4.3

In plain English

A medium-severity security flaw 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 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.4%top 70.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

PocketMine-MP versions before 5.39.2 contain a network amplification vulnerability in ActorEventPacket handling that allows clients to trigger consuming animations for all visible players. Attackers can send crafted ActorEventPacket messages to spam animation events to other clients and waste server CPU and memory resources.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	pocketmine/pocketmine-mp	5.39.2	GHSA-7hmv-4j2j-pp6f

Affected products (as reported)

Vendor	Product	Versions
pmmp	PocketMine-MP	0 – before 5.39.2

Weakness: CWE-406 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-7hmv-4j2j-pp6f) vendor-advisory
Patch Commit patch
VulnCheck Advisory: PocketMine-MP before 5.39.2 Network Amplification via ActorEventPacket third-party-advisory