Security Advisory 2021-15

Summary 2021-15 - Octopus Java Client SDK log4j 2.15.0 dependency (CVE-2021-45046)
Advisory Number 2021-15
Discovery Date 15 Dec 2021
Patch Release Date 15 Dec 2021
Advisory Release Date 15 Dec 2021
Product Octopus Java SDK
Operating System Linux and Windows
Severity Low
CVE ID CVE-2021-45046 (Apache Software Foundation)

Customers who have upgraded Octopus Java SDK to version 0.0.4 or higher are not affected.


Octopus Deploy has given this vulnerability a low 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.


There is a new denial of service vulnerability in log4j version 2.15.0 (CVE-2021-45046) which has been patched in 2.16.0. A new version of the Octopus Java SDK has been released to address the new vulnerability.

The versions of Octopus Java SDK affected by this vulnerability are:

  • 0.0.4 that contains a fix for these issues.


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

  • 0.0.4 that contains a fix for these issues.

The latest versions of the Octopus Java SDK can be downloaded from

What You Need to Do

Octopus Deploy recommends that you upgrade to the latest version (0.0.4). 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-2021-45046, 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