High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-37277
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:29 UTC · Revision 1
Source evidence
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.
osv:CVE-2020-37277
Complete source record
{
"id": "81df9dbde37525564cebb666b359e9219edce1fcd87fd3163dae491f79f066c8",
"url": "https://osv.dev/vulnerability/CVE-2020-37277",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-37277",
"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.",
"evidence": "osv:CVE-2020-37277",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-37277",
"aliases": [
"CVE-2020-37277",
"GHSA-8jq6-w5cg-wm45"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/pmmp/pocketmine-mp",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "e8b6b56330c8918b911ccc48e88a88b1e2cd201c"
},
{
"fixed": "c368ebb5e74632bc622534b37cd1447b97281e20"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.15.4"
}
],
"source": "DESCRIPTION"
},
{
"range": [
{
"fixed": "c368ebb5e74632bc622534b37cd1447b97281e20"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"3.15.3",
"3.15.2",
"3.15.1",
"3.15.0",
"3.14.3",
"3.14.2",
"3.14.1",
"3.14.0",
"3.13.1",
"3.13.0",
"3.12.6",
"3.12.5",
"3.12.4",
"3.12.3",
"3.12.2",
"3.12.1",
"3.11.7",
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"3.11.3",
"3.11.2",
"3.11.1",
"3.10.1",
"3.11.0",
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"3.10.0",
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"3.9.6",
"3.9.5",
"3.9.4",
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"3.9.1",
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"3.8.7",
"3.8.6",
"3.8.5",
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"3.8.3",
"3.8.2",
"3.8.1",
"3.8.0",
"3.7.3",
"3.7.2",
"3.7.1",
"3.7.0",
"3.6.5",
"3.6.4",
"3.6.3",
"3.6.2",
"3.6.1",
"3.6.0",
"3.5.10",
"3.5.9",
"3.5.8",
"3.5.7",
"3.5.6",
"3.5.5",
"3.5.4",
"3.5.3",
"3.5.2",
"3.5.1",
"3.5.0",
"3.4.1",
"3.4.0",
"3.2.0",
"3.0.2",
"3.0.1",
"3.0.0",
"api/3.0.0-ALPHA12",
"1.7dev-937",
"api/3.0.0-ALPHA11",
"1.7dev-677",
"api/3.0.0-ALPHA10",
"1.7dev-501",
"api/3.0.0-ALPHA8",
"1.7dev-83",
"api/3.0.0-ALPHA6",
"1.6.2dev-229",
"api/3.0.0-ALPHA4",
"api/3.0.0-ALPHA3",
"api/3.0.0-ALPHA2",
"api/3.0.0-ALPHA1",
"api/2.1.0",
"1.6.1dev-87",
"api/2.0.0",
"1.6dev",
"api/1.11.0",
"1.4.1",
"1.4.1dev-936",
"1.4-916",
"1.4",
"Alpha_1.4dev-900",
"Alpha_1.4dev-855",
"Alpha_1.4dev-847",
"Alpha_1.4dev-842",
"Alpha_1.4dev-834",
"Alpha_1.4dev-707",
"Alpha_1.4dev-665",
"Alpha_1.4dev-659",
"Alpha_1.4dev-599",
"Alpha_1.4dev-576",
"Alpha_1.4dev-491",
"Alpha_1.4dev-478",
"Alpha_1.4dev-449",
"Alpha_1.4dev-413",
"Alpha_1.4dev-277",
"Alpha_1.4dev-228",
"Alpha_1.3.10",
"Alpha_1.3.9",
"Alpha_1.3.8",
"Alpha_1.3.7",
"Alpha_1.3.5",
"Alpha_1.3.4",
"Alpha_1.3.3",
"Alpha_1.3.2",
"Alpha_1.3.1",
"Alpha_1.3",
"Alpha_1.2.1",
"Alpha_1.2",
"Alpha_1.1.1",
"Alpha_1.1",
"Alpha_1.0.8",
"Alpha_1.0.7",
"Alpha_1.0.6",
"Alpha_1.0.5",
"Alpha_1.0.4",
"Alpha_1.0.3",
"Alpha_1.0.2",
"Alpha_1.0.1",
"Alpha_1.0",
"pocketmine-mp-rebrand"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-37277.json"
}
}
],
"modified": "2026-10-20T10:54:22.453968013Z",
"provider": "osv",
"references": [
"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",
"https://github.com/pmmp/PocketMine-MP/commit/c368ebb5e74632bc622534b37cd1447b97281e20"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-37277",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 385230,
"published_at": "2026-09-06T12:17:13.547+00:00"
}