Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-51011— PocketMine-MP before 4.2.10 Denial of Service via Chat Messages

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 在 4.2.10 之前未能验证传入聊天消息数据块的总长度（即在按换行符拆分前），攻击者可以发送包含大量换行符的大型消息。恶意客户端可以发送兆字节大小的聊天数据包，并用成千上万个此类消息轰炸服务器，导致服务器出现持续数秒乃至数分钟的卡顿（锁死）现象。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1480 · Execution Guardrails

Affected Version Matrix 2

VendorProduct Version RangeStatus
pmmp PocketMine-MP < 4.2.10 affected
4.2.10 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-51011

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
PocketMine-MP before 4.2.10 Denial of Service via Chat Messages
Source: CVE Program / CVE List V5
Vulnerability Description
PocketMine-MP before 4.2.10 fails to validate the total length of incoming chat message blobs before splitting them by newline characters, allowing attackers to send large messages containing many newlines. Malicious clients can send megabyte-sized chat packets and bombard the server with thousands of such messages, causing server lockups lasting seconds or minutes.
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
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pmmp PocketMine-MP 0 ~ 4.2.10 -

II. Public POCs for CVE-2022-51011

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-51011

请登录查看更多情报信息。

Patches & Fixes for CVE-2022-51011 (1)

Vendor Advisories for CVE-2022-51011 (2)

Same Patch Batch · pmmp · 2026-09-07 · 9 CVEs total

CVE-2022-51017 7.5 HIGH PocketMine-MP before 3.26.5 and 4.0.5 Denial of Service via Skin Data
CVE-2022-51013 6.5 MEDIUM PocketMine-MP before 4.2.3 Denial of Service via NBT Metadata
CVE-2022-51010 6.5 MEDIUM PocketMine-MP before 4.4.2 Server Crash via Item ID
CVE-2022-51014 6.5 MEDIUM PocketMine-MP before 4.0.7 Denial of Service via JSON Decoding
CVE-2022-51012 6.5 MEDIUM PocketMine-MP before 4.2.9 Denial of Service via NBT Deserialization
CVE-2022-51018 6.5 MEDIUM PocketMine-MP before 3.26.5 Input Validation via Book Pages
CVE-2022-51015 6.5 MEDIUM PocketMine-MP before 4.0.6 Denial of Service via PlayerActionPacket
CVE-2022-51016 6.1 MEDIUM PocketMine-MP before 4.0.0 Authentication Bypass via Login Replay

IV. Related Vulnerabilities

Same product: PocketMine-MP
Same vendor: pmmp
Same weakness: CWE-20

V. Comments for CVE-2022-51011

No comments yet

Leave a comment