# Gno Updates security audit

Gno.land is a Proof of Contribution chain built on Gno, a deterministic, interpreted implementation of Go for smart contracts. This audit reviewed GnoVM updates to allocation, preprocessing and value handling in the gnolang package.

Codezen audited Gno Updates together with Oak Security. Technologies in scope: Golang and Consensus. We reported 25 findings: 3 critical, 6 major, 8 minor and 8 informational.

- Audit type: Blockchain security audit
- Technologies: Golang, Consensus
- Delivered with: Oak Security
- Report date: 9 January 2026
- Full report (PDF): https://github.com/oak-security/audit-reports/blob/main/Gno/2026-01-09%20Audit%20Report%20-%20Gno%20Updates%20v1.0.pdf
- Project website: https://gno.land
- Page: https://www.codezen.tech/audits/gno-land-chain-updates/

## Findings by severity

| Severity | Count |
| --- | --- |
| Critical | 3 |
| Major | 6 |
| Minor | 8 |
| Info | 8 |
| Total | 25 |

Need a similar audit? Email info@codezen.tech or visit https://www.codezen.tech/.