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ai-auditing cryptography zero-knowledge-proofs vulnerability-detection

AI Meets Cryptography 2: What AI Found in OpenVM's ZkVM

blog.zksecurity.xyz

July 17, 2026

13 min read

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Summary

AI auditor zkao identified a critical soundness bug in OpenVM's zkVM guest library openvm-pairing, allowing a malicious prover to forge any pairing equality. This vulnerability does not affect the zkVM's proving system itself but impacts code relying on the flawed library.

Key Takeaways

AI auditor zkao identified a critical soundness bug in OpenVM's zkVM, specifically in the openvm-pairing library, allowing malicious provers to forge pairing equality.
The identified bug was assigned CVE-2026-46669 and was fixed in OpenVM version 1.6.0, which all partners have reportedly upgraded to.
The AI's candidate finding was validated by humans, confirming its exploitability and understanding its impact before disclosure to the OpenVM team.
The complexity of zkVM codebases requires advanced context engineering for AI tools, as traditional auditing methods may not effectively identify meaningful bugs.

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