Answer in brief
CVE-2022-51016 records a Medium severity (CVSS 5.3) vulnerability in PocketMine-MP 3.x before 3.27.0 Authentication Bypass via Login Replay. The current sources do not mark it as known exploited. The current feed maps pmmp/PocketMine-MP (generic), pocketmine/pocketmine-mp (packagist). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps pmmp/PocketMine-MP (generic), pocketmine/pocketmine-mp (packagist). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| pmmp/PocketMine-MPgeneric | >=3.0.0 <3.27.0 | 3.27.0 |
| pocketmine/pocketmine-mppackagist | >=3.0.0 <4.0.0 | 4.0.0 |
Published upstream
Sep 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 7, 2026
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.
Quoted source text, attributed separately from HOL analysis.