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Is CoW Protocol Token Safe?

On-chain security analysis — is it a scam or legit?

CoW Protocol Token COW
0xc694…ae69
Base Not verifiedLast checked 3d ago 1 audit on record
DexScreener ↗
How is this score calculated? → High Risk
Executive SummaryAI Copilot

The OptimismMintableERC20 contract implements a standard ERC-20 token with specific functionalities for cross-chain bridging, allowing a designated bridge address to mint and burn tokens. The contract utilizes OpenZeppelin libraries for robust ERC-20 implementation and includes a Semver contract for versioning. The access control for critical minting and burning functions is well-defined and restricted to an immutable bridge address. No critical or high-severity vulnerabilities were identified in the contract's implementation.

1 Medium1 Low2 Informational
Volume 24h
$983.7100
Liquidity
$80.4K
Price
$0.1301
Token Age
8mo
Top 10 Holders
84.4%

Security Findings

1 Med1 Low2 Info
Medium

Centralization of Mint/Burn Authority

M-01The `BRIDGE` address has exclusive control over the `mint` and `burn` functions, allowing it to arbitrarily increase or decrease the token supply. While this is an intended design for a bridged token (7.4 Economic, 7.5 Governance), it represents a significant centralization point. A compromise of the `BRIDGE` contract or its private keys would allow an attacker to manipulate the token supply, potentially devaluing the token or causing economic instability.
IssueThe `BRIDGE` address has exclusive control over the `mint` and `burn` functions, allowing it to arbitrarily increase or decrease the token supply. While this is an intended design for a bridged token (7.4 Economic, 7.5 Governance), it represents a significant centralization point. A compromise of the `BRIDGE` contract or its private keys would allow an attacker to manipulate the token supply, potentially devaluing the token or causing economic instability.
FixEnsure the `BRIDGE` contract itself is highly secure, audited, and follows best practices for access control (e.g., multi-signature wallets, time-locks, robust governance). Implement comprehensive monitoring for `Mint` and `Burn` events to detect anomalous activity promptly. While this contract's design is sound, the security of the overall system heavily relies on the `BRIDGE`'s integrity.
StatusUnresolved
Low

Immutability of Bridge Address

L-01The `BRIDGE` address is set as an immutable variable in the constructor and cannot be changed after deployment (7.1 Architecture, 7.8 Operations). While this provides certainty and prevents unauthorized changes, it means that if the underlying bridge contract needs to be upgraded, replaced, or if its address changes for any reason, this `OptimismMintableERC20` contract would need to be redeployed, or a new token contract would need to be deployed to point to the new bridge.
IssueThe `BRIDGE` address is set as an immutable variable in the constructor and cannot be changed after deployment (7.1 Architecture, 7.8 Operations). While this provides certainty and prevents unauthorized changes, it means that if the underlying bridge contract needs to be upgraded, replaced, or if its address changes for any reason, this `OptimismMintableERC20` contract would need to be redeployed, or a new token contract would need to be deployed to point to the new bridge.
FixThis is a design choice. If operational flexibility for bridge upgrades is desired without redeploying the token, consider a pattern where the `BRIDGE` address can be updated by a trusted entity (e.g., a governance contract or multi-sig) through a controlled mechanism. However, this introduces additional complexity and potential attack surface, so the current immutable design is acceptable if redeployment is a viable strategy for bridge changes.
StatusUnresolved
Info

Lack of Emergency Pause Mechanism

I-01The contract lacks a general `Pausable` mechanism (e.g., from OpenZeppelin) that could halt `mint` and `burn` operations in an emergency (7.8 Operations). While the `onlyBridge` modifier restricts these functions, a `Pausable` contract could provide an additional layer of defense, allowing a trusted entity to temporarily stop critical operations in case of a severe vulnerability in the bridge, the token, or an external dependency.
IssueThe contract lacks a general `Pausable` mechanism (e.g., from OpenZeppelin) that could halt `mint` and `burn` operations in an emergency (7.8 Operations). While the `onlyBridge` modifier restricts these functions, a `Pausable` contract could provide an additional layer of defense, allowing a trusted entity to temporarily stop critical operations in case of a severe vulnerability in the bridge, the token, or an external dependency.
FixConsider integrating an OpenZeppelin `Pausable` contract, controlled by a robust governance mechanism (e.g., a multi-sig wallet or DAO). This would provide an emergency stop-gap measure, offering more control during critical incidents. Evaluate the trade-offs between added complexity and enhanced emergency response capabilities.
StatusUnresolved
Info

Informational Semver Usage

I-02The contract inherits from `Semver` to provide a version string (e.g., '1.0.0') (7.1 Architecture). This is useful for identification and tracking but does not inherently enforce any upgradeability, compatibility, or security rules. It serves purely as metadata.
IssueThe contract inherits from `Semver` to provide a version string (e.g., '1.0.0') (7.1 Architecture). This is useful for identification and tracking but does not inherently enforce any upgradeability, compatibility, or security rules. It serves purely as metadata.
FixContinue using Semver for clear version tracking. Ensure that any external systems or documentation correctly reference and utilize this version information for clarity and maintenance purposes.
StatusUnresolved

Category Ratings

TechnicalMedium6/10

The contract demonstrates strong technical security (7.2 Code Security) by inheriting from battle-tested OpenZeppelin ERC20 and utilizing Solidity 0.8.15, which includes built-in overflow/underflow checks. Access control (7.3 Access Control) for minting and burning is strictly enforced via the `onlyBridge` modifier, ensuring only the designated `BRIDGE` address can perform these operations. The implementation of `supportsInterface` for IERC165 is correct, enhancing interoperability. No reentrancy or other common technical vulnerabilities were found.

GovernanceHigh2/10

The economic model (7.4 Economic) of this token relies heavily on the `BRIDGE` address, which has absolute control over the token's supply through minting and burning. This design introduces a significant centralization risk (7.5 Governance), as a compromise of the `BRIDGE` contract or its controlling entity could lead to arbitrary token supply manipulation. While this is an inherent design for a bridged token, it's a key point of trust. The `REMOTE_TOKEN` address is immutable, linking this token permanently to its L1 counterpart.

UpgradesHigh3/10

The contract is not designed to be upgradeable via proxy patterns (7.7 Upgrades), as indicated by the absence of proxy-related code. The `BRIDGE` and `REMOTE_TOKEN` addresses are immutable, set during construction. The `Semver` contract provides versioning information but does not facilitate or enforce upgrade mechanisms. Any significant changes to the bridge or token logic would require a new deployment.

Security Checklist

2/5 checks passed
Contract VerifiedPass
Ownership RenouncedFail
No Mint FunctionFail
Liquidity LockedFail
Not a ProxyPass

Holder Composition

84.4% in top 10
14.4% in wallets70.0% in contracts
Effective Concentration42.4%

Share held by contracts — treasury, vesting, bridge or staking — is discounted against share held by wallets when the score is computed: a contract cannot decide to sell the way an anonymous holder can, though it can still be drained or voted to sell. Effective concentration is the figure the risk score is actually calculated from.

Liquidity Depth

$80.8K across 2 pairs
PancakeswapWETHanalysed$80.4K99.4%AerodromeWETH$4480.6%

The risk score reads depth across every pair. The volume figure and the volume-to-liquidity ratio elsewhere on this page describe only the pair this audit analysed, so the two are not directly comparable.

LP Distribution

Top-1 Unlocked Holder100.0%
Top-3 Unlocked100.0%

Key Addresses

2 addresses
Deployer
0x5b0a…fe42
Unlocked LP Held By
0x5bd3…d4e9

No privileged address appears among these holders: the unlocked liquidity sits with independent providers, not with the deployer.

What Raised This Score

8 factors
  • Ownership NOT renounced (admin/mint authority retained)
  • Mintable supply — no cap found, dilution unbounded
  • Top-10 concentration > 30% (84.4% total → 42.4% effective; 14.4% in EOAs, 70.0% in contracts — moderate)
  • Liquidity not locked, but no owner/deployer address holds LP — market-depth risk, not rug risk
  • LP top1 unlocked holder = 100.0% (independent LP — depth risk, pool = 99% of DEX liquidity)
  • LP top3 unlocked holders = 100.0% (independent LP — depth risk, pool = 99% of DEX liquidity)
  • 1 Medium finding(s) from audit
  • 1 Low finding(s) from audit

Each factor is an on-chain fact recorded at the time of this analysis. The score is computed from them by a deterministic function, so the same contract returns the same score for anyone who runs the audit. How scores are computed

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