# CVE-2022-51016: CVE-2022-51016

Status: published. Published: 2026-09-07. Updated: 2026-11-10.

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.

## Remediation

- fix: pocketmine/pocketmine-mp (Packagist): OSV reports a fixed version 4.0.0. Check the advisory for supported release branches. (source: OSV GHSA-h79x-98r2-g6qc) — https://github.com/advisories/GHSA-h79x-98r2-g6qc

## Affected products and versions

-  / pocketmine/pocketmine-mp (pocketmine/pocketmine-mp): 3.0.0 (affected, Packagist); 3.0.1 (affected, Packagist); 3.0.10 (affected, Packagist); 3.0.11 (affected, Packagist); 3.0.12 (affected, Packagist); 3.0.2 (affected, Packagist); 3.0.3 (affected, Packagist); 3.0.4 (affected, Packagist); 3.0.5 (affected, Packagist); 3.0.6 (affected, Packagist); 3.0.7 (affected, Packagist); 3.0.8 (affected, Packagist); 3.0.9 (affected, Packagist); 3.1.0 (affected, Packagist); 3.1.1 (affected, Packagist); 3.1.2 (affected, Packagist); 3.1.3 (affected, Packagist); 3.1.4 (affected, Packagist); 3.1.5 (affected, Packagist); 3.1.6 (affected, Packagist); 3.1.7 (affected, Packagist); 3.1.8 (affected, Packagist); 3.10.0 (affected, Packagist); 3.10.1 (affected, Packagist); 3.11.0 (affected, Packagist); 3.11.1 (affected, Packagist); 3.11.2 (affected, Packagist); 3.11.3 (affected, Packagist); 3.11.4 (affected, Packagist); 3.11.5 (affected, Packagist); 3.11.6 (affected, Packagist); 3.11.7 (affected, Packagist); 3.12.0 (affected, Packagist); 3.12.1 (affected, Packagist); 3.12.2 (affected, Packagist); 3.12.3 (affected, Packagist); 3.12.4 (affected, Packagist); 3.12.5 (affected, Packagist); 3.12.6 (affected, Packagist); 3.13.0 (affected, Packagist); 3.13.1 (affected, Packagist); 3.14.0 (affected, Packagist); 3.14.1 (affected, Packagist); 3.14.2 (affected, Packagist); 3.14.3 (affected, Packagist); 3.15.0 (affected, Packagist); 3.15.1 (affected, Packagist); 3.15.2 (affected, Packagist); 3.15.3 (affected, Packagist); 3.15.4 (affected, Packagist); 3.16.0 (affected, Packagist); 3.16.1 (affected, Packagist); 3.17.0 (affected, Packagist); 3.17.1 (affected, Packagist); 3.17.2 (affected, Packagist); 3.17.3 (affected, Packagist); 3.17.4 (affected, Packagist); 3.17.5 (affected, Packagist); 3.17.6 (affected, Packagist); 3.17.7 (affected, Packagist); 3.18.0 (affected, Packagist); 3.18.1 (affected, Packagist); 3.18.2 (affected, Packagist); 3.19.0 (affected, Packagist); 3.19.1 (affected, Packagist); 3.19.2 (affected, Packagist); 3.19.3 (affected, Packagist); 3.2.0 (affected, Packagist); 3.2.1 (affected, Packagist); 3.2.2 (affected, Packagist); 3.2.3 (affected, Packagist); 3.2.4 (affected, Packagist); 3.2.5 (affected, Packagist); 3.2.6 (affected, Packagist); 3.2.7 (affected, Packagist); 3.20.0 (affected, Packagist); 3.21.0 (affected, Packagist); 3.21.1 (affected, Packagist); 3.22.0 (affected, Packagist); 3.22.1 (affected, Packagist); 3.22.2 (affected, Packagist); 3.22.3 (affected, Packagist); 3.22.4 (affected, Packagist); 3.22.5 (affected, Packagist); 3.23.0 (affected, Packagist); 3.23.1 (affected, Packagist); 3.24.0 (affected, Packagist); 3.25.0 (affected, Packagist); 3.25.1 (affected, Packagist); 3.25.2 (affected, Packagist); 3.25.3 (affected, Packagist); 3.25.4 (affected, Packagist); 3.25.5 (affected, Packagist); 3.25.6 (affected, Packagist); 3.26.0 (affected, Packagist); 3.26.1 (affected, Packagist); 3.26.2 (affected, Packagist); 3.26.3 (affected, Packagist); 3.26.4 (affected, Packagist); 3.26.5 (affected, Packagist); 3.27.0 (affected, Packagist); 3.28.0 (affected, Packagist); 3.3.0 (affected, Packagist); 3.3.1 (affected, Packagist); 3.3.2 (affected, Packagist); 3.3.3 (affected, Packagist); 3.3.4 (affected, Packagist); 3.4.0 (affected, Packagist); 3.4.1 (affected, Packagist); 3.4.2 (affected, Packagist); 3.4.3 (affected, Packagist); 3.5.0 (affected, Packagist); 3.5.1 (affected, Packagist); 3.5.10 (affected, Packagist); 3.5.11 (affected, Packagist); 3.5.12 (affected, Packagist); 3.5.13 (affected, Packagist); 3.5.2 (affected, Packagist); 3.5.3 (affected, Packagist); 3.5.4 (affected, Packagist); 3.5.5 (affected, Packagist); 3.5.6 (affected, Packagist); 3.5.7 (affected, Packagist); 3.5.8 (affected, Packagist); 3.5.9 (affected, Packagist); 3.6.0 (affected, Packagist); 3.6.1 (affected, Packagist); 3.6.2 (affected, Packagist); 3.6.3 (affected, Packagist); 3.6.4 (affected, Packagist); 3.6.5 (affected, Packagist); 3.6.6 (affected, Packagist); 3.7.0 (affected, Packagist); 3.7.1 (affected, Packagist); 3.7.2 (affected, Packagist); 3.7.3 (affected, Packagist); 3.8.0 (affected, Packagist); 3.8.1 (affected, Packagist); 3.8.2 (affected, Packagist); 3.8.3 (affected, Packagist); 3.8.4 (affected, Packagist); 3.8.5 (affected, Packagist); 3.8.6 (affected, Packagist); 3.8.7 (affected, Packagist); 3.9.0 (affected, Packagist); 3.9.1 (affected, Packagist); 3.9.2 (affected, Packagist); 3.9.3 (affected, Packagist); 3.9.4 (affected, Packagist); 3.9.5 (affected, Packagist); 3.9.6 (affected, Packagist); 3.9.7 (affected, Packagist); 3.9.8 (affected, Packagist); 4.0.0-BETA1 (affected, Packagist); 4.0.0-BETA10 (affected, Packagist); 4.0.0-BETA11 (affected, Packagist); 4.0.0-BETA12 (affected, Packagist); 4.0.0-BETA13 (affected, Packagist); 4.0.0-BETA14 (affected, Packagist); 4.0.0-BETA15 (affected, Packagist); 4.0.0-BETA2 (affected, Packagist); 4.0.0-BETA3 (affected, Packagist); 4.0.0-BETA4 (affected, Packagist); 4.0.0-BETA5 (affected, Packagist); 4.0.0-BETA6 (affected, Packagist); 4.0.0-BETA7 (affected, Packagist); 4.0.0-BETA8 (affected, Packagist); 4.0.0-BETA9 (affected, Packagist); Ecosystem version events: introduced 3.0.0; fixed 4.0.0. Source: OSV GHSA-h79x-98r2-g6qc

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); 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/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable yes; technical impact partial; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-294

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/pmmp/PocketMine-MP/commit/d28be4eaf24a890f7ef110a51181a3d806a6acca (disclosure@vulncheck.com)

- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h79x-98r2-g6qc (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/pocketmine-mp-before-4.0.0-authentication-bypass-via-login-replay (disclosure@vulncheck.com)

- https://github.com/advisories/GHSA-h79x-98r2-g6qc (OSV / GitHub Security Advisories; advisory)

- https://osv.dev/vulnerability/GHSA-h79x-98r2-g6qc (OSV / GitHub Security Advisories; osv)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-51016; retrieved 2026-11-10; source updated 2026-11-10

- OSV / GitHub Security Advisories: https://osv.dev/vulnerability/GHSA-h79x-98r2-g6qc; retrieved 2026-11-10; source updated 2026-09-09

Revision: 23767f81c611107ba8a0f02a26aaa4dd94b8966320aa63be8e384015e0a6514e

Canonical: https://y2.dev/cve/CVE-2022-51016

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