Omniscia Nexera Audit
ODC Delta Security Audit
Audit Report Revisions
| Commit Hash | Date | Audit Report Hash |
|---|---|---|
| 18197a4e0e | April 29th 2025 | 7cd852bb1d |
| dd233d105a | May 13th 2025 | 4a435a9e8d |
| dd233d105a | May 17th 2025 | cb7bc1df6b |
Audit Overview
We were tasked with performing an audit of the Nexera codebase and in particular their Omnichain Data Container implementation updates.
The updates have introduced several new implementations that support recovery and pausability capabilities, alongside the following changes across several contracts:
- Refinement of project structure and import paths
- Immutable variable optimizations
- Function visibility adjustments
- Transfer logic split for recovery support
Over the course of the audit, we identified a significant flaw in the EIP-20 pausable implementation that would permit the paused state to be circumvented as well as improper paused state enforcement in both EIP-20 and EIP-1155 implementations around mint and burn operations.
We advise the Nexera team to closely evaluate all minor-and-above findings identified in the report and promptly remediate them as well as consider all optimizational exhibits identified in the report.
Post-Audit Conclusion
The Nexera team iterated through all findings within the report and provided us with a revised commit hash to evaluate all exhibits on.
We evaluated all alleviations performed by Nexera and have identified that all exhibits have been adequately dealt with no outstanding issues remaining in the report.
Audit Synopsis
| Severity | Identified | Alleviated | Partially Alleviated | Acknowledged |
|---|---|---|---|---|
 | 0 | 0 | 0 | 0 |
 | 7 | 7 | 0 | 0 |
 | 1 | 1 | 0 | 0 |
 | 2 | 2 | 0 | 0 |
 | 1 | 1 | 0 | 0 |
During the audit, we filtered and validated a total of 0 findings utilizing static analysis tools as well as identified a total of 11 findings during the manual review of the codebase. We strongly recommend that any minor severity or higher findings are dealt with promptly prior to the project's launch as they can introduce potential misbehaviours of the system as well as exploits.
Total Alleviations
The list below covers each segment of the audit in depth and links to the respective chapter of the report: