Field notes — essays & research notes

Things I've written down.

Ruby, Rails, performance, security and applied machine learning. Updated when something feels finished.

All Ruby & Rails Security LLM & Agents MLOps Computer Vision Big Data Research
10 posts in Security
SECURITY 03 / 18 / 26

Accepting files from strangers

An upload endpoint accepts arbitrary bytes chosen by someone you don't know. Almost every mistake here comes from trusting what they say it is.

2 min