CVE-2023-54394

PocketMine-MP before 4.18.0-ALPHA2 Bandwidth Amplification via InventoryTransactionPacket

State: Published
Severity: 5.3 Medium
Published: Sep 9, 2026
Updated: Oct 8, 2026
Reserved: Sep 5, 2026

Description

PocketMine-MP before 4.18.0-ALPHA2 fails to rate-limit mismatch type InventoryTransactionPacket requests, allowing attackers to trigger excessive inventory synchronization. Attackers can send numerous mismatch transactions to force the server to transmit large amounts of serialized inventory data, consuming significant bandwidth without authentication.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	VulnCheck

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
PocketMine-MPpmmp	before 4.18.0-ALPHA2Affected 4.18.0-ALPHA2Not affected

References

GitHub Security Advisory (GHSA-42qm-8v8m-m78c)vendor-advisory
Patch Commitpatch
VulnCheck Advisory: PocketMine-MP before 4.18.0-ALPHA2 Bandwidth Amplification via InventoryTransactionPacketthird-party-advisory

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