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Vulnerability record · CVE-2020-37277 · published 6 September 2026

CVE-2020-37277: Uncontrolled resource consumption vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.30% · top 80.1% CWE-400 · Uncontrolled resource consumption Deferred
7.1CVSS 4.0 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
8 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/pmmp/PocketMine-MP/commit/c368ebb5e74632bc622534b37cd1447b97281e20
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-8jq6-w5cg-wm45
https://www.vulncheck.com/advisories/pocketmine-mp-before-3.15.4-denial-of-service-via-inventorytransaction

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Source: NIST National Vulnerability Database (record CVE-2020-37277), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.