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PocketMine-MP vulnerable to denial-of-service by sending large modal form responses

  • Publicada: 10.01.2023
  • Actualizado: 11.10.2026 10:22

Impact

Due to a workaround for an old client bug (which has since been fixed), very large JSON payloads in ModalFormResponsePacket were able to cause the server to spend a significant amount of time processing the packet. Large numbers of these packets were able to hog CPU time so as to prevent the server from processing other connections in a timely manner.

Patches

The problem has been addressed in 3baa5ab71214f96e6e7ab12cb9beef08118473b5 by removing the workaround code.

Workarounds

Plugins could cancel DataPacketReceiveEvent for this packet, decode the data their way, and then call Player->onFormSubmit() directly, bypassing the vulnerable code.

Software afectado

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PlataformaPaqueteVersiones vulnerablesCorregida en
Paquete de Composer pocketmine/pocketmine-mp < 4.12.5 4.12.5

Referencias

Puntuación CVSS 5.3/10
Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Debilidad (CWE)
-
Plataforma
Composer
Paquete
pocketmine/pocketmine-mp
Publicada
10.01.2023
Actualizado
11.10.2026 10:22

Fuentes y licencias

OSV / GitHub Advisory Database - GHSA-7m9r-rq9j-wmmh - CC BY 4.0

Historial de vulnerabilidades: pocketmine/pocketmine-mp

Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.

Todas (30) en el archivo
Entradas en total
30
Primera → última
11.2020 04.2026
Sin corrección
0
Explotada en ataques
0

Distribución por gravedad

  • Alta 20
  • Media 8
  • Baja 2

Divulgaciones por año

Gravedad:
  1. PocketMine-MP: JSON decoding of unlimited size large arrays/objects in ModalFormResponse Handling
    Alta CVE-2026-86204 < 5.39.2 5.39.2
  2. PocketMine-MP: LogDoS by large complex unknown property logging in clientData in LoginPacket
    Alta · 7.5 CVE-2026-86201 < 5.41.1 5.41.1
  3. PocketMine-MP `ResourcePackDataInfoPacket` amplification vulnerability due to lack of resource pack sequence status checking
    Alta CVE-2025-71417 < 5.32.1 5.32.1
  4. PocketMine-MP server crash with certain invalid JSON payloads in `LoginPacket` due to dependency vulnerability (3rd time)
    Alta · 7.5 CVE-2024-58381 < 5.11.1 5.11.1
  5. PocketMine-MP BookEditPacket crash when inventory slot in the packet is invalid
    Alta · 7.5 CVE-2024-58380 < 5.11.2 5.11.2
  6. PocketMine-MP server crash with certain invalid JSON payloads in `LoginPacket` due to dependency vulnerability (again)
    Alta · 7.5 CVE-2023-54390 >= 5.0.0, < 5.3.1, < 4.23.1 5.3.1, 4.23.1
  7. PocketMine-MP server crash due to incorrect EC curve used for LoginPacket identityPublicKey
    Alta · 7.5 CVE-2023-54355 >= 5.2.0, < 5.3.1 5.3.1
  8. PocketMine-MP vulnerable to server crash using badly formatted sign NBT in BlockActorDataPacket
    Alta · 7.5 CVE-2023-54392 >= 4.20.0, < 4.22.3, >= 5.0.0, < 5.2.1 4.22.3, 5.2.1
  9. PocketMine-MP vulnerable to improperly checked dropped item count leading to server crash
    Alta · 7.5 CVE-2023-7332 < 4.18.1 4.18.1
  10. PocketMine-MP vulnerable to server crash with certain invalid JSON payloads in `LoginPacket` due to vulnerable dependency
    Alta · 7.5 CVE-2023-54393 < 4.20.5, >= 4.21.0, < 4.21.1 4.20.5, 4.21.1
  11. PocketMine-MP vulnerable to denial-of-service by sending large modal form responses esta entrada
    Media · 5.3 CVE-2023-54395 < 4.12.5 4.12.5
  12. PocketMine-MP has improperly handled dye colour IDs in banner NBT, leading to server crash
    Alta · 7.5 CVE-2023-54396 < 4.8.1 4.8.1
  13. PocketMine-MP invalid skin geometry JSON data leading to server crash
    Alta · 7.5 CVE-2022-51009 < 4.7.2 4.7.2
  14. Improperly checked IDs on itemstacks received from the client leading to server crash in PocketMine-MP
    Alta · 7.5 CVE-2022-51010 >= 4.0.0-BETA5, < 4.4.2 4.4.2
  15. Insufficient type validation in pocketmine/pocketmine-mp
    Alta · 7.5 CVE-2022-51012 < 4.2.9 4.2.9
  16. Improperly checked metadata on tools/armour itemstacks received from the client
    Alta · 7.5 CVE-2022-51013 < 4.2.4 4.2.4
  17. NaN/INF in serverbound movement packets can crash clients and servers
    Alta · 7.5 CVE-2021-48007 < 3.18.1 3.18.1
  18. Unhandled exception when decoding form response JSON
    Alta · 7.5 CVE-2022-51014 >= 4.0.0, < 4.0.7 4.0.7
  19. Unchecked validity of Facing values in PlayerActionPacket
    Alta · 7.5 CVE-2022-51015 < 4.0.6 4.0.6
  20. Uncapped length of skin data fields submitted by players
    Alta · 7.5 CVE-2022-51017 < 3.26.5, >= 4.0.0, < 4.0.5 3.26.5, 4.0.5
  21. Exploitable inventory component chaining in PocketMine-MP
    Alta CVE-2020-37277 < 3.15.4 3.15.4

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