Denial of Service Vulnerability in PocketMine-MP by PocketMine Team
CVE-2020-37277

7.1HIGH

Key Information:

Vendor

Pmmp

Status
Pocketmine-mp
Vendor
CVE Published:
6 September 2026

What is CVE-2020-37277?

PocketMine-MP versions prior to 3.15.4 are susceptible to a denial of service issue originating from the InventoryTransaction component. By sending specially crafted InventoryTransactionPackets that include multiple conflicting pathways, malicious clients can induce an exponential processing complexity on the server, effectively freezing it and impairing service availability. This vulnerability highlights the importance of timely updates to protect server integrity and performance.

Affected Version(s)

PocketMine-MP 0 < 3.15.4

PocketMine-MP 3.15.4

References

https://github.com/pmmp/PocketMine-MP/security/advisories...
vendor-advisory
https://github.com/pmmp/PocketMine-MP/commit/c368ebb5e746...
patch
https://www.vulncheck.com/advisories/pocketmine-mp-before...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Muqsit
CortexPE
.