Security Audits
Most Audits were completed prior to the rebrand from xDai Chain to Gnosis, and will refer to the xDai chain as well as the STAKE token, the previous governance token of the chain (the chain is in the process of transferring to GNO-only security).
Stake Beacon Chain by ChainSecurity
Completed: October 1, 2021
Conclusion: During the assessment one critical issue was found and fixed following the intermediate report. The remaining issues were of low severity and were fixed accordingly. The communication with the team was very responsive.
Audit Report: https://chainsecurity.com/security-audit/poa-network-stake-beacon-chain-sbc-deposit/
OmniBridge v6.0 Smart Contracts Audit by ChainSecurity
Completed: September 7, 2021
Conclusion: The assessment uncovered a number of potential issues which were resolved by the team. Two additional issues were acknowledged and largely mitigated by the team, and the original severities are no longer applicable. These upgrades to the Omnibridge provide additional functionality which will be implemented in the future.
- Contracts: https://github.com/poanetwork/omnibridge
- Audit Report
ChainSecurity_POA_Network_Omnibridge_Version_6_0_audit.pdf
POSDAO Audit by ChainSecurity
Completed: June 25, 2021
Conclusion: The assessment uncovered several issues which were addressed or acknowledged by the team. No "critical" severity security flaws preventing continued usage or launch of contracts in future contexts were found. 0 Critical Issues, 1 High Risk Issue Accepted, 4 Medium Issues Accepted/Acknowledged, 4 Low Risk Issues Accepted/Acknowledged.
- Contracts: https://github.com/poanetwork/posdao-contracts
- Audit Report in repo: https://github.com/poanetwork/posdao-contracts/blob/master/audit/ChainSecurity/report.pdf
OmniBridge Audit by ChainSecurity
Completed: April 27, 2021
Conclusion: 0 Critical or High Risk Issues, 2 Medium Issues Accepted, 3 Low Risk Issues Accepted/Acknowledged
Contracts: https://github.com/poanetwork/omnibridge
TokenBridge Audit by Quantstamp (covers OmniBridge)
Completed: November 6, 2020
Conclusion: No high and medium risk issues found, all low risk issues addressed.
Contracts: Revised in version 5.5.0-rc0 to address audit. https://github.com/poanetwork/tokenbridge-contracts/releases/tag/5.5.0-rc0
EasyStaking Audit by Quantstamp
Completed: August 3, 2020
Conclusion: All high/medium/low risk issues resolved.
XDai-Easy-Staking-Final-Report.pdf
TokenBridge Audit by Quantstamp (covers xDai bridge functionality)
Completed: January 8, 2020
Conclusion: All high risk issues resolved and low risk issues addressed. More information available in this post.
Contracts: Revised in version 3.3.0 to address audit. https://github.com/poanetwork/tokenbridge-contracts/releases/tag/3.3.0
STAKE Token Distribution by Quantstamp
STAKE Token Distribution Audit
Completed: June 24, 2020
Conclusion: No High or Medium risks, all low and informational risks addressed
DPOS Audit
In the original audit, the working name for the staking token was DPOS. This changed to STAKE.
DPOS Audit Completed: September 5, 2019
Conclusion: All risks resolved.
Contracts: Version 1.0.1 addressed items in audit.
https://github.com/xdaichain/stake-token/releases/tag/v1.0.1
STAKE Legal Opinion
The token constitutes a VFA in terms of Maltese law. Please contact team@xdaichain.com to request access to the document.
POSDAO Initial Security Audit by PepperSec
Completed: August 2019
Conclusion: All issues fixed or addressed. Due to scalability concerns, teams created a new methodology to accumulate and later “pull” their stakes and rewards instead of the “push” strategy as implemented in the audited version of the contracts.
Contracts: Version 0.1.0 addresses issues present in audit. https://github.com/poanetwork/posdao-contracts/releases/tag/v0.1.0