Summary Workspace Agent manifests containing sensitive values were logged in plaintext unsanitized

Details By default Workspace Agent logs are redirected to stderr https://github.com/coder/coder/blob/a8862be546f347c59201e2219d917e28121c0edb/cli/agent.go#L432-L439

Workspace Agent Manifests containing sensitive environment variables were logged insecurely https://github.com/coder/coder/blob/7beb95fd56d2f790502e236b64906f8eefb969bd/agent/agent.go#L1090

An attacker with limited local access to the Coder Workspace (VM, K8s Pod etc.) or a third-party system (SIEM, logging stack) could access those logs

This behavior opened room for unauthorized access and privilege escalation

Impact Impact varies depending on the environment variables set in a given workspace

Patches Fix was released & backported: - https://github.com/coder/coder/releases/tag/v2.28.4 - https://github.com/coder/coder/releases/tag/v2.27.7 - https://github.com/coder/coder/releases/tag/v2.26.5

Workarounds One potential workaround is to disable Workspace Agent Logs by setting following configuration option CODERAGENTLOGGINGHUMAN=/dev/null platform operators are advised to upgrade their deployments