# Snowbridge Updates 4 security audit

Snowbridge by Snowfork is a trustless Polkadot–Ethereum bridge; this audit reviewed updates to its Solidity contracts and related Polkadot SDK pull requests for the BEEFY and Beacon Chain light clients.

Codezen audited Snowbridge Updates 4 together with Oak Security. Technologies in scope: Rust, Solidity, Substrate, Polkadot, Ethereum and Bridge. We reported 7 findings: 3 minor and 4 informational.

- Audit type: Cross-chain bridge audit
- Technologies: Rust, Solidity, Substrate, Polkadot, Ethereum, Bridge
- Ecosystem: Ethereum, Polkadot
- Delivered with: Oak Security
- Report date: 6 May 2025
- Full report (PDF): https://github.com/oak-security/audit-reports/blob/main/Snowbridge/2025-05-06%20Audit%20Report%20-%20Snowbridge%20Updates%204%20v1.0.pdf
- Project website: https://docs.snowbridge.network/
- Page: https://www.codezen.tech/audits/snowfork-snowbridge-updates-4/

## Findings by severity

| Severity | Count |
| --- | --- |
| Critical | 0 |
| Major | 0 |
| Minor | 3 |
| Info | 4 |
| Total | 7 |

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