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GHSA-wqqv-jcfr-9f5g: PocketMine-MP has improperly handled dye colour IDs in banner NBT, leading to server crash

January 9, 2023 (updated December 26, 2025)

DyeColorIdMap->fromId() did not account for the possibility that it might be given invalid input. This means that an undefined offset error would occur whenever this happened.

References

  • github.com/advisories/GHSA-wqqv-jcfr-9f5g
  • github.com/pmmp/PocketMine-MP
  • github.com/pmmp/PocketMine-MP/blob/38d6284671e8b657ba557e765a6c29b24a7705f5/src/item/Banner.php
  • github.com/pmmp/PocketMine-MP/commit/08b9495bce2d65a6d1d3eeb76e484499a00765eb
  • github.com/pmmp/PocketMine-MP/security/advisories/GHSA-wqqv-jcfr-9f5g

Code Behaviors & Features

Detect and mitigate GHSA-wqqv-jcfr-9f5g with GitLab Dependency Scanning

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Affected versions

All versions before 4.8.1

Fixed versions

  • 4.8.1

Solution

Upgrade to version 4.8.1 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Source file

packagist/pocketmine/pocketmine-mp/GHSA-wqqv-jcfr-9f5g.yml

Spotted a mistake? Edit the file on GitLab.

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