Fei Protocol Audit

OpenZeppelin5 Feb 2021Files named in the report

Audit · firm’s term: audit

OpenZeppelin reviewed Fei Protocol (Fei Protocol Audit) on 5 Feb 2021: 23 findings, 5 critical; 15 marked fixed, 8 open.

5 critical findings, fixed

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Report hosted on blog.openzeppelin.com.

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Findings23

Statuses are the security firm’s own, from its report.

Severity	Open	Acknowledged	Fixed
Critical	0	0	5
High	1	0	2
Medium	2	0	4
Low	5	0	4

High[H03] Incentive to support the peg decays with volatilityOpen

The report gives no description here.

Medium[M01] Malicious actors can lock all FEI and TRIBE in the GenesisGroupOpen

The report gives no description here.

Medium[M06] Incentive does not initialize when Ether depreciatesOpen

The report gives no description here.

Low[L02] Authorized burners can burn FEI balances without an amount restrictionOpen

The report gives no description here.

Low[L04] Multiple outdated Solidity versions in useOpen

The report gives no description here.

Low[L06] Not using SafeMath and SafeCastOpen

The report gives no description here.

Low[L08] Re-implementing ECDSA signature recoveryOpen

The report gives no description here.

Low[L09] Transfers are not checked for successOpen

The report gives no description here.

Contracts in scope

No deployed address is recorded for this audit.

The report names a repository or files. Open the report to see its scope.

Repository and files the report names (18)

contracts/genesis/GenesisGroup.sol
contracts/pcv/IUniswapPCVController.sol
contracts/external/SafeMathCopy.sol
contracts/core/Core.sol
contracts/token/Fei.sol
contracts/bondingcurve/BondingCurve.sol
contracts/utils/Timed.sol
contracts/oracle/UniswapOracle.sol
contracts/pool/Pool.sol
contracts/token/IFei.sol
contracts/dao/Tribe.sol
contracts/orchestration/BondingCurveOrchestrator.sol
contracts/token/UniswapIncentive.sol
contracts/token/IUniswapIncentive.sol
contracts/pcv/EthUniswapPCVController.sol
contracts/oracle/IOracle.sol
contracts/pcv/IPCVDeposit.sol
contracts/token/IIncentive.sol

Part of Fei Protocol’s security record

Fei Protocol

Audits5 audits by 2 firmsLast audit Sep 2021, by Consensys.

Critical findings1 open critical findingReported in “Fei Tribechief” by Consensys, Jul 2021. Not marked fixed in that report.

Open Fei Protocol’s security record

Security firm

OpenZeppelin

67 projects reviewed · 184 reports · latest Aug 2026

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