Tidesight stores what visitors do on websites, so its security matters to more people than its users.
Please report it privately: on GitHub, Security → Report a vulnerability (private vulnerability reporting). Do not open a public issue for it.
Say what an attacker can do, against which component (tracker, collector, dashboard, a connector, the jobs), and how to reproduce it. You will get an answer within a week; a fix comes with a test that fails without it, and a release.
The latest release. Installations see new releases in their dashboard (Status page) and update with a click; see docs/deploy-dreamhost.md.
The design and the past reviews are described in README.md and docs/roadmap.md: bounded public endpoints, no secrets stored from requests, redacted URLs, a strict Content Security Policy for the dashboard, sign-in throttling, HTTPS-only passwords, read-only demos, and an outside check that the data folder cannot be downloaded.