SEPTEMBER 15, 2026
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Case File

CVE-2026-86204

MEDIUM · CVSS 6.5 EPSS 0.37% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-09 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

PocketMine-MP versions prior to 5.39.2 are vulnerable due to inadequate restrictions on JSON payload sizes in ModalFormResponsePacket handling, which can be exploited by authenticated users to trigger denial of service attacks. This vulnerability allows attackers to send oversized JSON arrays, leading to excessive memory and CPU resource consumption, ultimately causing the server to become unresponsive. Server administrators using affected versions should prioritize applying the update to mitigate potential disruptions.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
poc
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86204
Severity
MEDIUM
CVSS
6.5
EPSS
0.37%

Original NVD Description

PocketMine-MP versions before 5.39.2 fail to limit JSON payload size in ModalFormResponsePacket handling, allowing authenticated players to cause denial of service. Attackers can send modal form response packets with massive JSON arrays to exhaust server memory and CPU resources, rendering the server unresponsive.