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CVE-2023-54394— PocketMine-MP before 4.18.0-ALPHA2 Bandwidth Amplification via InventoryTransactionPacket

Quick assessment

Affected
pmmp PocketMine-MP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PocketMine-MP 4.18.0-ALPHA2 之前的版本未能对不匹配类型的 InventoryTransactionPacket 请求进行速率限制，使得攻击者能够触发过度的库存同步。攻击者可以发送大量不匹配的库存事务，迫使服务器传输大量序列化的库存数据，从而在无需身份验证的情况下消耗大量带宽。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1514
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I. Basic Information for CVE-2023-54394

Vulnerability Information
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Vulnerability Title
PocketMine-MP before 4.18.0-ALPHA2 Bandwidth Amplification via InventoryTransactionPacket
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pmmp PocketMine-MP 0 ~ 4.18.0-ALPHA2 -

II. Public POCs for CVE-2023-54394

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III. Intelligence Information for CVE-2023-54394

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Other References for CVE-2023-54394 (3)

Same Patch Batch · pmmp · 2026-09-09 · 18 CVEs total

CVE-2023-54393 7.5 HIGH PocketMine-MP before 4.20.5 Denial of Service via LoginPacket
CVE-2026-86199 7.5 HIGH PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login
CVE-2026-86201 7.5 HIGH PocketMine-MP before 5.41.1 LogDoS via LoginPacket clientData
CVE-2024-58381 7.5 HIGH PocketMine-MP before 5.11.1 Denial of Service via LoginPacket
CVE-2023-54390 7.5 HIGH PocketMine-MP before 5.3.1 Denial of Service via LoginPacket
CVE-2023-54355 7.5 HIGH PocketMine-MP 5.2.0 Server Crash via Incorrect EC Curve
CVE-2023-54392 6.5 MEDIUM PocketMine-MP before 4.22.3 Denial of Service via BlockActorDataPacket
CVE-2024-58380 6.5 MEDIUM PocketMine-MP before 5.11.2 Denial of Service via BookEditPacket
CVE-2025-71417 6.5 MEDIUM PocketMine-MP before 5.32.1 Denial of Service via ResourcePackClientResponsePacket
CVE-2026-86204 6.5 MEDIUM PocketMine-MP before 5.39.2 Denial of Service via ModalFormResponsePacket
CVE-2023-54396 6.5 MEDIUM PocketMine-MP before 4.8.1 Server Crash via Banner NBT
CVE-2025-71418 5.3 MEDIUM PocketMine-MP before 5.25.2 Denial of Service via explode
CVE-2026-86200 5.3 MEDIUM PocketMine-MP before 5.42.1 LogDoS via LoginPacket clientData JWT
CVE-2023-54395 4.3 MEDIUM PocketMine-MP before 4.12.5 Denial of Service via ModalFormResponsePacket
CVE-2026-86202 4.3 MEDIUM PocketMine-MP before 5.39.2 Network Amplification via ActorEventPacket
CVE-2026-86198 4.2 MEDIUM PocketMine-MP before 5.44.2 Denial of Service via ResourcePackClientResponsePacket
CVE-2026-86203 3.7 LOW PocketMine-MP before 5.39.2 Item Duplication via Despawn State

IV. Related Vulnerabilities

Same product: PocketMine-MP
Same vendor: pmmp
Same weakness: CWE-770

V. Comments for CVE-2023-54394

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