Taiko Protocol Audit

OpenZeppelinFiles named in the report

Audit · firm’s term: audit

OpenZeppelin reviewed Taiko (Taiko Protocol Audit) on 26 Jun 2024: 37 findings, 2 critical; 31 marked fixed, 3 acknowledged, 3 open.

2 critical findings, fixed
Open the reportOpen Taiko’s security record

Report hosted on blog.openzeppelin.com.

Trustblock does not review code.

Findings37

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

SeverityOpenAcknowledgedFixed
Critical002
High102
Medium018
Low2219
MediumQuota Manager Can Cause Recalled Funds to Be Stuck - Phase 3Acknowledged

The report gives no description here.

LowInefficient Feature Inclusion in EssentialContract - Phase 1Acknowledged

The report gives no description here.

LowL2 Block Difficulty Is Susceptible to Manipulation - Phase 1Acknowledged

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 (64)

  • packages/protocol/contracts/bridge/IBridge.sol
  • packages/protocol/contracts/L1/libs/LibProposing.sol
  • packages/protocol/contracts/L2/Lib1559Math.sol
  • packages/protocol/contracts/libs/LibTrieProof.sol
  • packages/protocol/contracts/thirdparty/optimism/Bytes.sol
  • packages/protocol/contracts/L1/gov/TaikoGovernor.sol
  • packages/protocol/contracts/L1/hooks/IHook.sol
  • packages/protocol/contracts/verifiers/IVerifier.sol
  • packages/protocol/contracts/tokenvault/IBridgedERC20.sol
  • packages/protocol/contracts/tokenvault/adapters/USDCAdapter.sol
  • packages/protocol/contracts/tokenvault/BridgedERC721.sol
  • packages/protocol/contracts/tokenvault/BridgedERC1155.sol
  • packages/protocol/contracts/L1/libs/LibUtils.sol
  • packages/protocol/contracts/L1/hooks/AssignmentHook.sol
  • packages/protocol/contracts/L1/libs/LibVerifying.sol
  • packages/protocol/contracts/tokenvault/ERC721Vault.sol
  • packages/protocol/contracts/tokenvault/ERC20Vault.sol
  • packages/protocol/contracts/common/EssentialContract.sol
  • packages/protocol/contracts/bridge/Bridge.sol
  • packages/protocol/contracts/L1/TaikoErrors.sol
  • packages/protocol/contracts/verifiers/SgxVerifier.sol
  • packages/protocol/contracts/thirdparty/solmate/LibFixedPointMath.sol
  • packages/protocol/contracts/libs/LibMath.sol
  • packages/protocol/contracts/thirdparty/optimism/rlp/RLPWriter.sol
  • packages/protocol/contracts/tokenvault/ERC1155Vault.sol
  • packages/protocol/contracts/tokenvault/LibBridgedToken.sol
  • packages/protocol/contracts/libs/LibAddress.sol
  • packages/protocol/contracts/libs/Lib4844.sol
  • packages/protocol/contracts/signal/ISignalService.sol
  • packages/protocol/contracts/L1/tiers/ITierProvider.sol
  • packages/protocol/contracts/team/TimelockTokenPool.sol
  • packages/protocol/contracts/tokenvault/BaseVault.sol
  • packages/protocol/contracts/thirdparty/optimism/trie/MerkleTrie.sol
  • packages/protocol/contracts/common/AddressManager.sol
  • packages/protocol/contracts/L1/gov/TaikoTimelockController.sol
  • packages/protocol/contracts/signal/LibSignals.sol
  • packages/protocol/contracts/verifiers/GuardianVerifier.sol
  • packages/protocol/contracts/L2/TaikoL2EIP1559Configurable.sol
  • packages/protocol/contracts/L2/TaikoL2.sol
  • packages/protocol/contracts/L1/TaikoEvents.sol
  • packages/protocol/contracts/team/airdrop/ERC20Airdrop.sol
  • packages/protocol/contracts/L1/libs/LibDepositing.sol
  • packages/protocol/contracts/L2/CrossChainOwned.sol
  • packages/protocol/contracts/tokenvault/BridgedERC20Base.sol
  • packages/protocol/contracts/tokenvault/BridgedERC20.sol
  • packages/protocol/contracts/thirdparty/optimism/trie/SecureMerkleTrie.sol
  • packages/protocol/contracts/L1/libs/LibProving.sol
  • packages/protocol/contracts/L1/tiers/TestnetTierProvider.sol
  • packages/protocol/contracts/common/IAddressResolver.sol
  • packages/protocol/contracts/signal/SignalService.sol
  • packages/protocol/contracts/L1/provers/GuardianProver.sol
  • packages/protocol/contracts/team/airdrop/MerkleClaimable.sol
  • packages/protocol/contracts/common/IAddressManager.sol
  • packages/protocol/contracts/L1/provers/Guardians.sol
  • packages/protocol/contracts/L1/ITaikoL1.sol
  • packages/protocol/contracts/thirdparty/nomad-xyz/ExcessivelySafeCall.sol
  • packages/protocol/contracts/L1/TaikoData.sol
  • packages/protocol/contracts/thirdparty/optimism/rlp/RLPReader.sol
  • packages/protocol/contracts/L1/tiers/DevnetTierProvider.sol
  • packages/protocol/contracts/L1/TaikoL1.sol
  • packages/protocol/contracts/tokenvault/BaseNFTVault.sol
  • packages/protocol/contracts/L1/tiers/MainnetTierProvider.sol
  • packages/protocol/contracts/L1/TaikoToken.sol
  • packages/protocol/contracts/common/AddressResolver.sol

Part of Taiko’s security record

Taiko
Audits2 audits by 2 firmsLast audit Jun 2024, by OpenZeppelin.
Critical findingsNo open critical findingsAcross the 2 reports, 2 critical findings were reported. Each is marked fixed by the firm that reported it.
Open Taiko’s security record

Security firm

OpenZeppelin

67 projects reviewed · 184 reports · latest Aug 2026

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