CVE-2026-86199 Details
Description
PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication. Unauthenticated players can trigger an uninitialized property access error that crashes the server.
A denial-of-service vulnerability exists in PocketMine-MP versions prior to 5.43.1. The issue arises during offline login authentication, where the server fails to properly validate the Certificate field. Unauthenticated players can exploit this flaw, triggering an uninitialized property access error that crashes the server. This vulnerability can be repeatedly abused, affecting public servers even when offline mode is disabled.
Users can update to PocketMine-MP version 5.43.1 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 9, 2026CISA-ADP
Assessed Sep 9, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-184 | Incomplete List of Disallowed Inputs | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| PocketMine-MP | >= 0, < 5.43.1 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 9, 2026 | CVE Modified | CISA-ADP |
| Sep 9, 2026 | New CVE Received | [email protected] |
Volerion