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Security Advisories: GSA_kwCzR0hTQS0zcXBtLWg5Y2gtcHgzY80gtg

Remote code injection, Improper Input Validation and Uncontrolled Recursion in Log4j library


The version used of Log4j, the library used for logging by PowerNukkit, is subject to a remote code execution vulnerability via the ldap JNDI parser.
It's well detailed at CVE-2021-44228 and CVE-2021-45105(


Malicious client code could be used to send messages and cause remote code execution on the server.


PowerNukkit is a patch-release that only updates the Log4j version to 2.17.0 and should be used instead of
All versions prior to are affected and are not patched.


If you can't upgrade, you can use the -Dlog4j2.formatMsgNoLookups=true startup argument as remediation, as this prevents the vulnerability from happening.


For more information

If you have any questions or comments about this advisory:

Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 2 years ago
Updated: over 1 year ago

CVSS Score: 10.0
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Identifiers: GHSA-3qpm-h9ch-px3c
References: Repository:
Blast Radius: 12.6

Affected Packages

Dependent packages: 1
Dependent repositories: 18
Affected Version Ranges: <=
Fixed in:
All affected versions:
All unaffected versions: