CWE-bench v2: More coverage, quality, and transparency
Story 9, from Hugging Face
CWE-bench v2 is a public benchmark with 100 security-related tasks covering 91 CWEs, designed to evaluate models' ability to find and fix security vulnerabilities. It includes rigorous quality checks and open-source transparency.
Key points
- CWE-bench v2 includes 100 tasks covering 91 different CWEs, testing models on real-world security vulnerabilities.
- Each task is designed to ensure the model finds and fixes a security weakness without breaking existing functionality.
- The benchmark includes programmatic scoring, manual reviews, and checks to avoid memorization of known patches.
- Results are tracked on Hugging Face, with leaderboards for open-weight and API-only models.
- Models like Gemini 4 Argon and Claude Opus 5.5 show strong performance, but the long tail of tasks remains unsolved.
- The benchmark is self-contained and can be run via Harbor from the Hugging Face repo.
Why it matters
As a software engineer, this benchmark provides a standardized, transparent way to evaluate and improve your models' security capabilities. It helps identify gaps in how models handle real-world vulnerabilities, which is critical for building secure systems.
Counterpoint
The benchmark is still limited to tasks that have been curated and may not cover all possible real-world attack vectors, especially those that are novel or highly context-dependent.
Sources
- CWE-bench v2: More coverage, quality, and transparency (Hugging Face)
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