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Remote Code Execution via malicious YAML configurations in some versions #5042
An authenticated user with permission to modify deployment processes could upload a maliciously crafted YAML configuration, potentially allowing for remote execution of arbitrary code, running in the same context as the Octopus Server (for self-hosted installations by default, SYSTEM).
If this issue is of concern to you and your team, we strongly recommend upgrading to version
In any version affected by this issue, we recommend upgrading to version
In situations where upgrade is not possible, running the octopus server built in worker as a service account with limited privileges may help to minimize the potential impact of such an occurrence, however this will not prevent attackers from attempting to chain other attacks against the server.