Shift-Left Chain Enforcement: Blocking Vulnerability Chains at Commit Time

Based on the CSA/SANS document "The AI Vulnerability Storm: Building a Mythos‑ready Security Program" (April 2026) The Problem: Detection After the Fact Is Too Late The previous article in this series covered how chain analysis changes vulnerability prioritization at scan time. But there is a harder version of the same problem: what happens when vulnerable code is already in the repository? The CSA/SANS document puts the time-to-exploit in 2026 at under 24 hours. Traditional patch cycles run in