CVE-2022-51016 — PocketMine-MP 3.x before 3.27.0 Authentication Bypass via Login Replay
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 corres…
Published: 2026-09-07 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7