Tailsnitch

tailsnitch is a security auditing tool for Tailscale networks (tailnets) that scans configurations and device setups to detect risky or overly permissive settings, helping administrators maintain a secure mesh network. Written in Go and designed to be run either as a CLI or integrated into automated pipelines, tailsnitch performs dozens of checks against common access control policies, authentication key practices, network exposure issues, and device security settings. It outputs structured reports on findings with severity levels and remediation guidance, and it can generate results in formats like JSON for downstream analysis and integration with CI/CD pipelines. Tailsnitch supports authentication via the Tailscale API (including OAuth or API keys) and provides options to filter findings, run only high-severity checks, and produce compliance artifacts like SOC 2 evidence exports.