Google Uses AI to Automatically Rewrite Critical C Libraries Into Rust, Fixing Zero-Day Before Disclosure
Google security teams have successfully used its Gemini AI model to automatically translate a 3,000-line C library into safe Rust code, creating a drop-in replacement that eliminated an unpatched zero-day vulnerability — catalogued as CVE-2026-26740 — before it was publicly disclosed. The initiative targeted giflib, an image-processing library that often handles untrusted user input without sandboxing, and delivered an ABI-compatible Rust version that allowed the team to decommission process isolation sandboxes while maintaining latency neutrality.
