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Trader Joe

Trader Joe is a leading DEX on Avalanche, Arbitrum and BNB Chain. Its latest version, V2 aka the Liquidity Book, is a novel concentrated liquidity AMM that discretises price into constant sum price bins. In addition, its novel architecture includes a variable fee component based on volatility that is measured from its internal volatility oracle.

Arbitrum
Avalanche
ETH
Defi
AMM
DEX
Lending
Staking
Solidity
Maximum Bounty
$100,000
Live Since
12 May 2023
Last Updated
03 December 2024
  • PoC required

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Assets in Scope

Target
Primacy Of Impact
Type
Smart Contract
Added on
5 October 2023
Target
Type
Smart Contract - LBPair implementation
Added on
12 May 2023
Target
Type
Smart Contract - LBPair implementation
Added on
12 May 2023
Target
Type
Smart Contract - LBPair implementation
Added on
12 May 2023
Target
Type
Smart Contract - LBFactory
Added on
12 May 2023
Target
Type
Smart Contract - LBFactory
Added on
12 May 2023
Target
Type
Smart Contract - LBFactory
Added on
12 May 2023
Target
Type
Smart Contract - LBRouter
Added on
12 May 2023
Target
Type
Smart Contract - LBRouter
Added on
12 May 2023
Target
Type
Smart Contract - LBRouter
Added on
12 May 2023
Target
Type
Smart Contract - LBQuoter
Added on
12 May 2023
Target
Type
Smart Contract - LBQuoter
Added on
12 May 2023

Impacts in Scope

Severity
Critical
Title

Any governance voting result manipulation

Severity
Critical
Title

Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield

Severity
Critical
Title

Direct theft of any user NFTs, whether at-rest or in-motion, other than unclaimed royalties

Severity
Critical
Title

Permanent freezing of funds

Severity
Critical
Title

Permanent freezing of NFTs

Severity
Critical
Title

Unauthorized minting of NFTs

Severity
Critical
Title

Predictable or manipulable RNG that results in abuse of the principal or NFT

Severity
Critical
Title

Unintended alteration of what the NFT represents (e.g. token URI, payload, artistic content)

Severity
Critical
Title

Protocol insolvency

Severity
High
Title

Theft of unclaimed yield

Severity
High
Title

Theft of unclaimed royalties

Severity
High
Title

Permanent freezing of unclaimed yield

Out of scope

Program's Out of Scope information
  • Broken link hijacking is out of scope
  • Best practice critiques
Default Out of Scope and rules

Smart Contract specific

  • Incorrect data supplied by third party oracles
    • Not to exclude oracle manipulation/flash loan attacks
  • Impacts requiring basic economic and governance attacks (e.g. 51% attack)
  • Lack of liquidity impacts
  • Impacts from Sybil attacks
  • Impacts involving centralization risks

All categories

  • Impacts requiring attacks that the reporter has already exploited themselves, leading to damage
  • Impacts caused by attacks requiring access to leaked keys/credentials
  • Impacts caused by attacks requiring access to privileged addresses (including, but not limited to: governance and strategist contracts) without additional modifications to the privileges attributed
  • Impacts relying on attacks involving the depegging of an external stablecoin where the attacker does not directly cause the depegging due to a bug in code
  • Mentions of secrets, access tokens, API keys, private keys, etc. in Github will be considered out of scope without proof that they are in-use in production
  • Best practice recommendations
  • Feature requests
  • Impacts on test files and configuration files unless stated otherwise in the bug bounty program
  • Impacts requiring phishing or other social engineering attacks against project's employees and/or customers
Severity
Min. - Max.
Critical
$100k
High
$10k
Medium
$2.5k
Low
$1k
Total Assets in Scope
13
Total Impacts in Scope
20