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  4. CVE 2023 54390 pocketmine mp before 531 denial of service via
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Back to active CVEs
High · CVSS 8.7CVE-2023-54390GHSA-92JH-GWCH-JQ38

PocketMine-MP before 5.3.1 Denial of Service via LoginPacketCVE-2023-54390

Answer in brief

CVE-2023-54390 records a High severity (CVSS 8.7) vulnerability in PocketMine-MP before 5.3.1 Denial of Service via LoginPacket. The current sources do not mark it as known exploited. The current feed maps pmmp/PocketMine-MP (generic), pocketmine/pocketmine-mp (packagist), 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.

Published Sep 9, 2026Updated Oct 8, 2026Source checked Oct 24, 2026First seen by HOL Sep 9, 2026Material review Oct 8, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1025
Source
CVE List V5
Source checked
Oct 24, 2026
References
5 linked sources
Open source record

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.7. 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.

Affected scope and exposure questions

The current feed maps pmmp/PocketMine-MP (generic), pocketmine/pocketmine-mp (packagist), pocketmine/pocketmine-mp (packagist). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
pmmp/PocketMine-MPgeneric>=0 <4.23.1 || >=5.0.0 <5.3.14.23.1, 5.3.1
pocketmine/pocketmine-mppackagist>=5.0.0 <5.3.15.3.1
pocketmine/pocketmine-mppackagist>=0 <4.23.14.23.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for pmmp/PocketMine-MP, pocketmine/pocketmine-mp, pocketmine/pocketmine-mp.
  2. 2Review the reported fix. Update pmmp/PocketMine-MP to 4.23.1; pocketmine/pocketmine-mp to 5.3.1; pocketmine/pocketmine-mp to 4.23.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 9, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

PocketMine-MP versions before 5.3.1 and 4.23.1 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper null value handling in arrays. Attackers can send malformed JSON with unexpected null elements in LoginPacket to crash the server.

Quoted source text, attributed separately from HOL analysis.