PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication. Unauthenticated players can trigger an uninitialized property access error that crashes the server.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-184"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86199.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "5.43.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "e4aaef4ee0f769b52dc0347a1d6da403b9691115"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "8c75a1d739e8e190d3cc2338b25cebcc9c052b1b"
}
],
"source": "REFERENCES_COMMIT"
}
]
}