CVE-2026-101169: High severity Octopus Deploy Octopus Server vulnerability
In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically crafted JSON content for the object. Insecure deserialization of this content allows the user to execute arbitrary code in the Octopus Server process.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must be authenticated to Octopus Server and have permission to edit an Environment or Project. Users without those permissions are not identified as able to exploit the issue.
What level of access could successful exploitation provide?
Successful exploitation allows arbitrary code execution in the Octopus Server process. The resulting access level is tied to the privileges and environment of that server process.
What attacker-controlled input is involved?
The attacker sets specifically crafted JSON content on an Environment or Project object. The server insecurely deserializes that content.