The 2021 paper OSRM-CCTV: Open-source CCTV-aware routing and navigation system for privacy, anonymity and safety says they published source code at https://github.com/Fuziih but I don't see it there now (though there is a related project called cctv-exposure).

The final published version of the paper seems to be paywalled; it's probably on scihub but there is also a preprint of it here on arxiv.

https://github.com/FNBIP/ghost-route (just 3 commits, from February this year) says it is inspired by the paper and "extended to a production-grade multi-mode threat routing system". It's a node app you run locally (there doesn't appear to be a public instance currently) which would be nice if it could work offline but unfortunately "Offline mode with pre-downloaded OSM tiles" is still on the roadmap and it currently lists "A Mapbox GL JS token (free tier works)" as a requirement (which is probably why there isn't a public instance - someone would need to pay mapbox if they wanted to run it for other people).

I have not tried it; if anyone reading this has or does please post here about how it works!

there's also sites that report them to you.