CVE-2022-51014: PocketMine-MP before 4.0.7 Denial of Service via JSON Decoding

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-07 · updated 2026-10-08
Weakness: CWE-248

Description

PocketMine-MP before 4.0.7 contains an unhandled exception vulnerability in the ModalFormResponsePacket handler when processing malformed JSON from clients. Attackers can send specially crafted form response packets with invalid JSON to trigger an uncaught InvalidArgumentException, causing server crashes.

Affected products

pmmp PocketMine-MP: before 4.0.7 — fixed in 4.0.7

How to fix

Upgrade to a fixed version: pmmp PocketMine-MP 4.0.7. Check the vendor advisory for mitigations.

References

https://github.com/pmmp/PocketMine-MP/commit/56fe71d939c38fe14e18a31a673a9331bcc0e4ca
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-wjfq-88q2-r34j
https://www.vulncheck.com/advisories/pocketmine-mp-before-4.0.7-denial-of-service-via-json-decoding

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