this post was submitted on 07 Sep 2026
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My Homelab Got Hacked - A Postmortem – Phunky Cafe (phunky.cafe)
submitted 3 days ago by michaelharley@infosec.pub to c/selfhosted@lemmy.world
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Welp. My Forgejo instance got popped with an RCE two days ago by CVE-2026-60004. Luckily, I noticed the following morning and had the day free to figure out what happened. Let's dive in!

As a homelab enthusiast, I found this a very interesting post. Here are my take aways from the post that I'm implementing myself:

  • Miner detection. I've updated monitoring rules to now watch the CPU on my hosts. If the same thing happened to me I would not have been alerted at all as I'm doing simple up / down monitoring. Fixed.
  • Access logging. I turned on access logging for my homelab Caddy instances.
  • Log retention. I have increased the amount and retention of my logging. The hope is this will help me reconstruct what happened after a breach.
  • Logs offsite. The VPS access logs now ride along with the normal backup process, which runs hourly. The homelab side still only gets caught by the weekly VM backup, so that's next.
  • Closed an open signup. My webtrees instance (genealogy) had self registration enabled, which is the same door this guy got hit through. Oops. Fixed.
  • Built a tool. log-inventory.sh, so "could I actually reconstruct what happened" is a command I run instead of a thing I assume.
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[–] SusanoStyle@lemmy.ml 11 points 3 days ago

This! Good advice! I went this path last year so i can give some extra advice for everyone who wants to start:

Before doing anything, buy a new router and put your iot devices and phones in a isolated guest network. Maintain the router updated. After that, you can work, learn and test without fear. Everything stays in your home.

Then like @webghost0101@sopuli.xyz already said, once you get confident, you can run a vpn tunnel to access your lan. This setup is pretty robust, hard to fuck up, and doable even for newbies. (If i can do it, everyone can, i assure you). Lots of guides out there.

Last advice, which you should already be doing, but setup a backup.