Best of 2026

The blog posts Hacker News loved most in 2026. 717 posts.

Security & Privacy
337

Twenty One Zero-Days in FFmpeg

depthfirst's production autonomous security agent discovered 21 zero-day vulnerabilities in FFmpeg, after intensive security analysis by Google and Anthropic. Moving beyond theoretical analysis, our agent produces concrete, reproducible PoC inputs to confirm its findings at a fraction of the costs ($1k vs. $10k)…

358

The woes of sanitizing SVGs

Scratch has a long history of SVG-related vulnerabilities. The source of these is that Scratch parses user-generated (ie. attacker-controlled) content into an <svg> element and appends it into the main document for various operations (eg. measuring SVG bounding box in a more reliable way than viewbox or width/height).