Remote code injection, Improper Input Validation and Uncontrolled Recursion in Log4j library
Summary
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(https://github.com/advisories/GHSA-p6xc-xr62-6r2g).
Impact
Malicious client code could be used to send messages and cause remote code execution on the server.
Patches
PowerNukkit 1.5.2.1 is a patch-release that only updates the Log4j version to 2.17.0 and should be used instead of 1.5.2.0.
All versions prior to 1.5.2.1 are affected and are not patched.
Workarounds
If you can't upgrade, you can use the -Dlog4j2.formatMsgNoLookups=true startup argument as remediation, as this prevents the vulnerability from happening.
References
https://github.com/advisories/GHSA-jfh8-c2jp-5v3q https://github.com/advisories/GHSA-p6xc-xr62-6r2g
For more information
If you have any questions or comments about this advisory:
- Open an issue in the PowerNukkit repository
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.powernukkit:powernukkit | < 1.5.2.1 | 1.5.2.1 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-20, CWE-400, CWE-502- Platform
- Java / Kotlin (Maven)
- Package
org.powernukkit:powernukkit- Disclosed
- 06.01.2022
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-3qpm-h9ch-px3c - CC BY 4.0
Vulnerability history: org.powernukkit:powernukkit
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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