PocketMine-MP invalid skin geometry JSON data leading to server crash
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### 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 [[email protected]](mailto:[email protected])
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | pocketmine/pocketmine-mp (Packagist) | before 4.7.2 | 4.7.2 | Patch available | GHSA-8cwq-4cmf-px73 |
- pocketmine/pocketmine-mp (Packagist) Vendor— Affected before 4.7.2 Fixed in 4.7.2 Patch available GHSA-8cwq-4cmf-px73
Remediation
- Fix · GHSA-8cwq-4cmf-px73 pocketmine/pocketmine-mp (Packagist) Fixed in 4.7.2 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-8cwq-4cmf-px73
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences