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Advisory record · GHSA-8cwq-4cmf-px73

PocketMine-MP invalid skin geometry JSON data leading to server crash

CVSS 8.7 HighEPSS 0.0061 · 49th percentile

Published by the GitHub Advisory Database at 18 Aug 2022, 19:19 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
pocketmine/pocketmine-mpPackagist<4.7.24.7.2
Identifiers
GHSA-8cwq-4cmf-px73 · CVE-2022-51009 · PKSA-g2v4-vgph-zkgr
Weakness (CWE)
CWE-248
Tags
Published
18 Aug 2022
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

PocketMine-MP versions before 4.7.2 are affected: the Skin class does not handle errors from the adhocore/json-comment library, which throws an exception instead of returning false as expected. An attacker who can send invalid skin geometry data, such as malformed JSON, can crash the server, and the source does not describe any further impact. Upgrade to PocketMine-MP 4.7.2, which the source lists as the fixed version; the source also mentions a plugin workaround that checks skin geometry data in the login and skin packets.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0061, the 49th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:04 UTC First seen by agentprime
  2. 31 Oct 2026, 14:04 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.