zlacker

> Here’s the test. If /tmp/.XIN-unix/javae exists on my host, I’m fucked. If it doesn’t exist, then what I’m seeing is just Docker’s default behavior of showing container processes in the host’s ps output, but they’re actually isolated.

  /tmp/.XIN-unix/javae &
  rm /tmp/.XIN-unix/javae

This article’s LLM writing style is painful, and it’s full of misinformation (is Puppeteer even involved in the vulnerability?).

>>minite+(OP)
Yeah fair, I asked claude to help because honestly this was a little beyond my writing skills. I'm real though. Sorry. Will change

>>minite+(OP)
I fixed it, apologies for the misinformation.

>>jakels+31
Hi Jake! Cool article, and it's something I'll keep in mind when I start giving my self-hosted setup a remodel soon. That said, I have to agree with the parent comment and say that the LLM writing style dulled what would otherwise have been a lovely sysadmin detective work article and didn't make me want to explore your site further.

I'm glad you're up to writing more of your own posts, though! I'm right there with you that writing is difficult, and I've definitely got some posts on similar topics up on my site that are overly long and meandering and not quite good, but that's fine because eventually once I write enough they'll hopefully get better.

Here's hoping I'll read more from you soon!

>>jakels+31
Just a data point - I would rather read bad human writing than LLM output

>>jakels+31
Seconding what others have said about preferring to read bad human writing. And I don’t want to pick on you – this is a broadly applicable message prompted by a drop in the bucket – but please don’t publish articles beyond your ability to fact check. Just write what you actually know, and when you’re making a guess or you still have open questions at the end of your investigation, be honest about that. (People make mistakes all the time anyway, but we’re in an age where confident and detailed mistakes have become especially accessible.)

>>seafoa+M2
Thanks for the encouragement! I find it difficult to write articles beyond simply stating a series of facts.

I tried handwriting https://blog.jakesaunders.dev/schemaless-search-in-postgres/ bit I thought it came off as rambling.

Maybe I'll have a go at redrafting this tomorrow in non LLM-ese.

>>jakels+K1
I still see Puppeteer mentioned several times in your post and don't understand what that has to do with Umami, nextjs, and/or CVE-2025-66478.

>>jakels+K1
It still says:

> IT NEVER ESCAPED.

You haven't confirmed this (at least from the contents of the article). You did some reasonable spot checks and confirmed/corrected your understanding of the setup. I'd agree that it looks likely that it did not escape or gain persistence on your host but in no way have you actually verified this. If it were me I'd still wipe the host and set up everything from scratch again[0].

Also your part about the container user not being root is still misinformed and/or misleading. The user inside the container, the container runtime user, and whether container is privileged are three different things that are being talked about as one.

Also, see my comment on firewall: >>46306974

[0]: Not necessarily drop-everything-you-do urgently but next time you get some downtime to do it calmly. Recovering like this is a good excercise anyway to make sure you can if you get a more critical situation in the future where you really need to. It will also be less time and work vs actually confirming that the host is uncontaminated.

>>3np+ui
I did see your comment on Firewall, and you're right about the escape. It seems safe enough for now. Between the hacking and accidentally hitting the front page of HN it's been a long day.

I'm going to sit down and rewrite the article and take a further look at the container tomorrow.

>>jakels+9k
Hey, thanks for taking the time to share your learnings and engage. I'm sure there are HN readers out there who will be better off for it alongside you!

(And good to hear you're leaving the LLMs out of the writing next time <3)

>>jakels+31
It still says Puppeteer in multiple places.

>>jakels+9k
Before rewriting the article, roll out a new server. Seriously. It seems you do not have the skills yet to do a proper audit. It’s better to roll out a pristine server. If that is a lot of work, it is a good moment to learn about declarative system configuration.

At any rate, this happening to you sucks! Hugs from a fellow HN user, I know that things like this can suck up a lot of time and energy. It’s courageous to write about such an incident incident, I think it’s useful to a lot of other people too, kudos!

>>jakels+a5
This is much more pleasent to read and it gives a great insight into your actual thought process. Thanks for sharing and great writeup.

>>jakels+a5
> I tried handwriting https://blog.jakesaunders.dev/schemaless-search-in-postgres/ bit I thought it came off as rambling.

There is nothing wrong with this article. Please continue to write as you; it's what people came for.

LLMs have their place. I find it useful to prompt an LLM to fix typos and outright errors and also prompt them to NOT alter the character or tone of the text; they are extraordinarily good at that.