CVE-2023-7332
highpriority · track · 0EPSS 0.004 · 34 %ileEUUSEPSS · scored 2026-10-27
PocketMine-MP versions prior to 4.18.1 contain an improper input validation vulnerability in inventory transaction handling. A remote attacker with a valid player session can request that the server drop more items than are available in the player's hotbar, triggering a server crash and resulting in denial of service.
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 · 4.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-h87r-f4vc-mchvPocketMine-MP vulnerable to improperly checked dropped item count leading to server crash2023-06-06ghsa · osvUS
### Impact In 4.18.0, the network handling of inventories was completely revamped. Due to this, a bug was introduced which allowed players to request that the server drop more of an item than they had available in their hotbar. This did not lead to any duplication issues, but instead led to a server crash, and is believed to have been exploited in the wild. ### Patches This was fixed in 58974765a68f63a9968a7ff3a06f584ff2ee08d2, which was released in 4.18.1. ### Workarounds Handle `InventoryTransactionPacket` in `DataPacketReceiveEvent`, and verify that the item count dropped isn't more than the available item count. However, it's complicated to do this, so it's not recommended.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://github.com/pmmp/PocketMine-MP/blob/4.18.1/changelogs/4.18.mdcnnvd
- https://github.com/pmmp/PocketMine-MP/commit/5897476cnnvd
- https://github.com/pmmp/PocketMine-MP/releasesPatchcnnvd
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h87r-f4vc-mchvcnnvd
- https://www.vulncheck.com/advisories/pocketmine-mp-improper-validation-of-dropped-item-count-allows-remote-server-crashcnnvd
- https://github.com/pmmp/PocketMine-MP/blob/4.18.1/changelogs/4.18.mdenisa_euvd
- https://github.com/pmmp/PocketMine-MP/commit/5897476enisa_euvd
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h87r-f4vc-mchvenisa_euvd
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