{"id":"CVE-2022-51016","title":"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","summary":"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…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-294"],"vendor":"pmmp","product":"PocketMine-MP","affected":["PocketMine-MP >= 3.0.0 < 3.27.0"],"published":"2026-09-07","updated":"2026-09-10","sourceUpdated":"2026-09-10T16:17:06.777","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-51016","references":[{"url":"https://github.com/pmmp/PocketMine-MP/commit/d28be4eaf24a890f7ef110a51181a3d806a6acca","label":"disclosure@vulncheck.com"},{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h79x-98r2-g6qc","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-4.0.0-authentication-bypass-via-login-replay","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-10T14:22:36.392090Z"},"epss":0.00226,"epssPercentile":0.13551,"ingestedAt":"2026-09-08T15:33:26.976Z","slug":"CVE-2022-51016","body":"## Overview\n\nPocketMine-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}