CVE-2022-51014 pmmp CVE debrief

Who should care

Defenders responsible for PocketMine-MP servers should assess their exposure and prioritize upgrading to version 4.0.7 or later. They should also review server logs for potential exploitation attempts and implement additional security measures to prevent similar vulnerabilities. Operators of PocketMine-MP servers, security teams, and vulnerability management teams should be aware of this vulnerability and take necessary actions to mitigate the risk. This 7

Why it matters

CVE-2022-51014 is a high-severity vulnerability in PocketMine-MP before version 4.0.7 that can lead to server crashes. Defenders should prioritize verifying their PocketMine-MP versions and upgrading to 4.0.7 or later if necessary.

• Server crashes due to unhandled exceptions
• Potential for denial-of-service attacks
• Need for verification of PocketMine-MP versions and upgrades

Technical summary

The vulnerability is caused by an unhandled exception in the ModalFormResponsePacket handler when processing malformed JSON from clients. This can lead to server crashes. The issue affects PocketMine-MP before version 4.0.7. Defenders should prioritize verifying their PocketMine-MP versions and upgrading to 4.0.7 or later if necessary. The vulnerability can be triggered by sending specially crafted form response packets with invalid JSON to the server, which can result in an uncaught InvalidArgumentException and server crashes.

Defensive priority

Defenders should prioritize verifying their PocketMine-MP versions and upgrading to 4.0.7 or later if necessary.

Recommended defensive actions

• Verify PocketMine-MP version and upgrade to 4.0.7 or later if necessary
• Review server logs for potential exploitation attempts
• Implement additional security measures to prevent similar vulnerabilities
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The vulnerability is caused by an unhandled exception in the ModalFormResponsePacket handler when processing malformed JSON from clients. This can lead to server crashes. The CVE record was published on 2026-09-07T13:17:23.317Z and has not been modified since then. The NVD entry is currently Received. Defenders should verify PocketMine-MP versions and consider potential exposure.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.