CVE-2020-37277

PocketMine-MP before 3.15.4 Denial of Service via InventoryTransaction

State: Published
Severity: 7.1 High
Published: Sep 6, 2026
Updated: Oct 8, 2026
Reserved: Sep 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
PocketMine-MPpmmp	before 3.15.4Affected 3.15.4Not affected

References

GitHub Security Advisory (GHSA-8jq6-w5cg-wm45)vendor-advisory
https://github.com/pmmp/PocketMine-MP/commit/c368ebb5e74632bc622534b37cd1447b97281e20patch
VulnCheck Advisory: PocketMine-MP before 3.15.4 Denial of Service via InventoryTransactionthird-party-advisory

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