{"id":"CVE-2022-51016","summary":"PocketMine-MP 3.x before 3.27.0 Authentication Bypass via Login Replay","details":"PocketMine-MP 3.x (before 3.27.0) does not implement Minecraft Bedrock protocol encryption, so the server cannot verify that a connecting client possesses the private key corresponding to its login token. An attacker who captures a valid login from another player's session (for example by tricking the player into connecting to an attacker-controlled server) can replay that login to impersonate the victim and pass XBOX Live authentication until the JWT token expires (typically 2-3 days). This affects servers directly reachable over the internet that are not behind a proxy with encryption enabled. Fixed in 4.0.0 and backported to 3.27.0.","aliases":["GHSA-h79x-98r2-g6qc"],"modified":"2026-09-12T03:31:03.193725074Z","published":"2026-09-07T12:55:09.180Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-294"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/51xxx/CVE-2022-51016.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/51xxx/CVE-2022-51016.json"},{"type":"ADVISORY","url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h79x-98r2-g6qc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-51016"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-4.0.0-authentication-bypass-via-login-replay"},{"type":"FIX","url":"https://github.com/pmmp/PocketMine-MP/commit/d28be4eaf24a890f7ef110a51181a3d806a6acca"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pmmp/pocketmine-mp","events":[{"introduced":"03510333dcec34fa5a59191e8e9610a9da5765ef"},{"fixed":"d28be4eaf24a890f7ef110a51181a3d806a6acca"}],"database_specific":{"extracted_events":[{"introduced":"3.0.0"},{"fixed":"3.27.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["3.26.5","3.26.4","3.26.3","3.26.2","3.26.1","3.26.0","3.25.6","3.25.5","3.25.4","3.25.3","3.25.2","3.25.1","3.25.0","3.24.0","3.23.1","3.23.0","3.22.5","3.22.4","3.22.3","3.22.2","3.22.1","3.22.0","3.21.1","3.21.0","3.20.0","3.19.3","3.19.2","3.19.1","3.18.2","3.19.0","3.18.1","3.17.7","3.18.0","3.17.6","3.17.5","3.17.4","3.17.3","3.17.2","3.17.1","3.17.0","3.16.1","3.16.0","3.15.4","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","3.12.0","3.11.6","3.11.5","3.11.4","3.11.3","3.11.2","3.11.1","3.10.1","3.11.0","3.9.8","3.10.0","3.9.7","3.9.6","3.9.5","3.9.4","3.9.3","3.9.2","3.9.1","3.9.0","3.8.7","3.8.6","3.8.5","3.8.4","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"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-51016.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"}]}