Security Advisory 2021-13

Summary Octopus Java Client SDK log4j2 dependency (CVE-2021-44228)
Advisory Number 2021-13
Discovery Date 11 Dec 2021
Patch Release Date 11 Dec 2021
Advisory Release Date 13 Dec 2021
Product Octopus Java SDK
Operating System Linux and Windows
Severity Medium
CVE ID CVE-2021-44228 (Apache Software Foundation)

Customers who have upgraded Octopus Java SDK to version 0.0.3 or higher are not affected.


Octopus Deploy has given this vulnerability a medium rating. This rating was given according to the Octopus Deploy severity levels, which ranks vulnerabilities as critical, high, medium, or low severity.

This is our assessment and you should evaluate its applicability to your own environment.


The Octopus Java SDK is using the log4j2 version that is affected by the vulnerability in CVE-2021-44228. A new version has been deployed with the latest version of log4j to mitigate the vulnerability.

The versions of affected by this vulnerability are:

  • Versions 0.0.2 and earlier


To address this vulnerability, we have released Octopus Java SDK version:

  • 0.0.3 that contains a fix for these issues.

The latest versions of Octopus Deploy products can be downloaded from

What You Need to Do

Octopus Deploy recommends that you upgrade to the latest version (0.0.3). You can download the latest version of from


The previous mitigation provided were discovered to only limit exposure. There is no known mitigation for CVE-2021-44228, it is important to upgrade to a fixed version as soon as possible.


If you have any questions or concerns regarding this advisory, please contact our support team