TI-2020-19393 Aliases CVE-2020-37277 GHSA-w7p4-2gxc-qg89

PocketMine-MP before 3.15.4 Denial of Service via InventoryTransaction

LOW 32CWE-400Published 2026-09-06 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

PocketMine-MP versions before 3.15.4 contain a denial of service vulnerability in the InventoryTransaction component's findResultItem() method. Malicious clients can send specially crafted InventoryTransactionPackets with multiple conflicting pathways to cause exponential processing complexity, freezing the server.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0053 45th percentileScored 2026-11-07

Fix Fixed PocketMine-MP (pmmp): 3.15.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
pmmp	PocketMine-MP	before 3.15.4	3.15.4	Patch available	CNA

PocketMine-MP Vendorpmmp Affected before 3.15.4 Fixed in 3.15.4 Patch available CNA

Remediation

Fix · CNA PocketMine-MP (pmmp) Fixed in 3.15.4

Timeline

2026-10-02 Threatist record created from CVE-2020-37277
2026-10-03 Alias added: GHSA-w7p4-2gxc-qg89

References

Patch 1

https://github.com/pmmp/PocketMine-MP/commit/c368ebb5e74632bc622534b37cd1447b97281e20

Advisory 1

GitHub Security Advisory (GHSA-8jq6-w5cg-wm45)

TI-2026-58990 PocketMine-MP before 5.41.1 LogDoS via LoginPacket clientData CVSS 4.0HIGH 8.7
TI-2026-58988 PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login CVSS 4.0HIGH 8.7
TI-2026-58993 PocketMine-MP before 5.39.2 Denial of Service via ModalFormResponsePacket CVSS 4.0HIGH 7.1
TI-2024-38460 PocketMine-MP before 5.11.1 Denial of Service via LoginPacket CVSS 4.0HIGH 8.7
TI-2023-30643 PocketMine-MP before 4.20.5 Denial of Service via LoginPacket CVSS 4.0HIGH 8.7
TI-2023-30640 PocketMine-MP before 5.3.1 Denial of Service via LoginPacket CVSS 4.0HIGH 8.7

See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences