CVE-2022-51009
highpriority · track · 30EPSS 0.006 · 49 %ileUSEPSS · scored 2026-10-27
PocketMine-MP before 4.7.2 fails to properly handle exceptions from the adhocore/json-comment library when parsing skin geometry data. Attackers can send login or skin packets with invalid geometry JSON to trigger an unhandled RuntimeException, causing server crash.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7
ssvc
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weaknesses
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affected products (1)
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advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-8cwq-4cmf-px73PocketMine-MP invalid skin geometry JSON data leading to server crash2022-08-18ghsa · osvUS
### Impact `pocketmine\entity\Skin` doesn't correctly handle errors produced by `adhocore/json-comment`, which throws `RuntimeException` rather than returning `false` as PocketMine-MP expects. This leads to a server crash if the skin geometry data is invalid for some reason (e.g. a syntax error). ### Patches c9626c610b8f6810c8c987559c9197b2a291f0bb ### Workarounds A plugin could handle `LoginPacket` and `PlayerSkinPacket` to verify the skin geometry data can be parsed correctly, so that the error condition in the core code is never reached. ### For more information If you have any questions or comments about this advisory: * Email us at [security@pmmp.io](mailto:security@example.com)
sources
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references (3) nvd
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