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CVE-2022-51016

6.1 · MEDIUM

PocketMine-MP 3.x (before 3.27.0) does not implement Minecraft Bedrock protocol encryption, so the server cannot verify that a connecting client possesses the private key corresponding to its login…

Published Sep 7, 2026CWE-294EPSS 0.24%

Overview

CVE-2022-51016 is a medium-severity vulnerability. It was published on September 7, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PocketMine-MP 3.x (before 3.27.0) does not implement Minecraft Bedrock protocol encryption, so the server cannot verify that a connecting client possesses the private key corresponding to its login token. An attacker who captures a valid login from another player's session (for example by tricking the player into connecting to an attacker-controlled server) can replay that login to impersonate the victim and pass XBOX Live authentication until the JWT token expires (typically 2-3 days). This affects servers directly reachable over the internet that are not behind a proxy with encryption enabled. Fixed in 4.0.0 and backported to 3.27.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/pmmp/PocketMine-MP/commit/d28be4eaf24a890f7ef110a51181a3d806a6accaGitHubgithub.com/pmmp/PocketMine-MP/security/advisories/GHSA-h79x-98r2-g6qcRefwww.vulncheck.com/advisories/pocketmine-mp-before-4.0.0-authentication-bypass-via-login-replay

How CyberStrike helps

Frequently asked questions

What is CVE-2022-51016?

CVE-2022-51016 is a medium-severity vulnerability. It was published on September 7, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2022-51016?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-51016?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-51016?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-51016 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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