CLSA-2026-1773667921 Fix CVE(s): CVE-2025-10230

SECURITY UPDATE: unauthenticated command injection via WINS hook in source4 NBT server. The "wins hook" parameter passed unsanitized NetBIOS names to a shell command, allowing arbitrary command execution by remote clients. - debian/patches/CVE-2025-10230.patch - CVE-2025-10230...

PocketMine-MP vulnerable to server crash using badly formatted sign NBT in BlockActorDataPacket

Summary A player sending a packet can cause the server to crash by providing incorrect sign data in NBT in BlockActorDataPacket. Details This vulnerability was discovered using the BlockActorDataPacket, but other packets may also be affected. The player would seem to just need to send an NBT with...

GHSA-7WRV-6H42-W54F PocketMine-MP vulnerable to server crash using badly formatted sign NBT in BlockActorDataPacket

Summary A player sending a packet can cause the server to crash by providing incorrect sign data in NBT in BlockActorDataPacket. Details This vulnerability was discovered using the BlockActorDataPacket, but other packets may also be affected. The player would seem to just need to send an NBT with...

PT-2026-88983

Name of the Vulnerable Software and Affected Versions PocketMine-MP versions 4.20.0 through 4.22.2 PocketMine-MP versions 5.0.0 through 5.2.0 Description Failure to validate NBT tag types in the BlockActorDataPacket allows a player to crash the server. By sending a packet containing sign NBT data...

SUSE CVE-2020-14303

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash...

WS-2023-0002

"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. This code is indirectly called during ""Banner-deserializeCompoundTag""...

PocketMine-MP has improperly handled dye colour IDs in banner NBT, leading to server crash

Impact 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. This code is indirectly called during Banner-deserializeCompoundTag, which is invoked when deserializing any item NBT...

GHSA-WQQV-JCFR-9F5G PocketMine-MP has improperly handled dye colour IDs in banner NBT, leading to server crash

Impact 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. This code is indirectly called during Banner-deserializeCompoundTag, which is invoked when deserializing any item NBT...

Improperly checked IDs on itemstacks received from the client leading to server crash in PocketMine-MP

Impact Due to a workaround for unmapped network items implemented in 4.0.0-BETA5 8ac16345a3bc099b62c1f5cfbf3b736e621c3f76, arbitrary item IDs are able to be written into an item's NBT. The intended purpose of this is to make said unmapped network items able to be moved around the inventory withou...

GHSA-FQX3-R75H-VC89 Improperly checked IDs on itemstacks received from the client leading to server crash in PocketMine-MP

Impact Due to a workaround for unmapped network items implemented in 4.0.0-BETA5 8ac16345a3bc099b62c1f5cfbf3b736e621c3f76, arbitrary item IDs are able to be written into an item's NBT. The intended purpose of this is to make said unmapped network items able to be moved around the inventory withou...

PT-2022-28242

Name of the Vulnerable Software and Affected Versions PocketMine-MP versions prior to the version containing the patch 5fd685e07d61ef670584ed11a52fd5f4b99a81a7 Description The issue arises from a workaround implemented for unmapped network items, allowing arbitrary item IDs to be written into an...

GHSA-G5RR-P69H-7V3G Insufficient type validation in pocketmine/pocketmine-mp

Impact When an inventory interaction is performed e.g. moving an item around an inventory, the client sends a serialized version of the itemstack to the server, which the server then deserializes and compares against its own copy. If the copies don't match, the transaction is invalid. This involv...

Insufficient type validation in pocketmine/pocketmine-mp

Impact When an inventory interaction is performed e.g. moving an item around an inventory, the client sends a serialized version of the itemstack to the server, which the server then deserializes and compares against its own copy. If the copies don't match, the transaction is invalid. This involv...

PT-2022-28243

Name of the Vulnerable Software and Affected Versions Software affected versions not specified Description The issue arises when the client sends a serialized version of the itemstack to the server during an inventory interaction. The server then deserializes this data and compares it against its...

Improperly checked metadata on tools/armour itemstacks received from the client

Impact Due to a workaround applied in 1.13, an attacker may send a negative damage/meta value in a tool or armour item's NBT, which TypeConverter then blindly uses as if it was valid without being checked. When this invalid metadata value reaches Durable-setDamage, an exception is thrown because...

PT-2026-86775

Name of the Vulnerable Software and Affected Versions PocketMine-MP versions prior to 4.2.3 Description The software fails to validate damage metadata values in tool and armor item NBT Named Binary Tag data received from clients. Due to a workaround applied in version 1.13, the TypeConverter uses...

PT-2022-28189

Name of the Vulnerable Software and Affected Versions PocketMine-MP versions prior to the version containing commit c8e1cfcbee4945fd4b63d2a7e96025c59744d4f1 Description The issue arises from a workaround applied in version 1.13, allowing an attacker to send a negative damage or meta value in a to...

Uncapped length of skin data fields submitted by players

Impact Some skin data fields e.g. skinID, geometryName are not capped in length. These fields are typically saved in the NBT data of a player when the player quits the server, or during an autosave. This is problematic due to the 32767 byte limit on TAGStrings. If any of these fields exceeds 3276...

Book page text, count, and author/title length is not limited in PocketMine-MP

Impact Players can fill book pages with as many characters as they like; the server does not check this. In addition, the maximum of 50 pages is also not enforced, meaning that players can create "book bombs". This causes a variety of problems: - Oversized NBT on the wire costing excess bandwidth...

GHSA-P62J-HRXM-XCXF Book page text, count, and author/title length is not limited in PocketMine-MP

Impact Players can fill book pages with as many characters as they like; the server does not check this. In addition, the maximum of 50 pages is also not enforced, meaning that players can create "book bombs". This causes a variety of problems: - Oversized NBT on the wire costing excess bandwidth...