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Study finds AI-generated code has 2.7x more security flaws

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Dec 2025

CodeRabbit's analysis of 470 real-world pull requests found that AI-generated code introduces 2.74 times more security vulnerabilities and 1.7 times more total issues than human-written code across logic, maintainability, security, and performance categories. The study provides hard data on vibe coding risks after multiple 2025 postmortems traced production failures to AI-authored changes.

Incident Details

Perpetrator:Developer
Severity:Facepalm
Blast Radius:Industry-wide implications for teams relying on AI coding assistants; documented increase in security vulnerabilities, logic errors, and maintainability issues in production codebases.