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Hyperlane

Hyperlane is the modular interoperability platform, empowering developers to build interchain applications, apps that can easily and securely communicate between blockchains.

Arbitrum
BSC
Celo
ETH
Gnosis
Moonbeam
Optimism
Polygon
Blockchain
Infrastructure
Services
NextJS
Solidity
Maximum Bounty
$2,500,000
Live Since
10 January 2023
Last Updated
03 December 2025
  • PoC Required

  • KYC required

Select the category you'd like to explore

Assets in Scope

Target
Name
Arbitrum validatorAnnounce
Added on
19 July 2024
Target
Name
Arbitrum proxyAdmin
Added on
19 July 2024
Target
Name
Arbitrum Mailbox proxy
Added on
19 July 2024
Target
Name
Arbitrum Mailbox implementation
Added on
19 July 2024
Target
Name
Arbitrum FallbackRoutingHook
Added on
19 July 2024
Target
Name
Arbitrum AggregationHook
Added on
19 July 2024
Target
Name
Arbitrum staticAggregationHookFactory
Added on
19 July 2024
Target
Name
Arbitrum interchainGasPaymaster proxy
Added on
19 July 2024
Target
Name
Arbitrum interchainGasPaymaster implementation
Added on
19 July 2024
Target
Name
Arbitrum storageGasOracle
Added on
19 July 2024
Target
Name
Arbitrum merkleTreeHook
Added on
19 July 2024
Target
Name
Arbitrum pausableHook
Added on
19 July 2024

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

Miner-extractable value (MEV)

Severity
Critical
Title

Unauthorized minting of NFTs

Severity
Critical
Title

Predictable or manipulable RNG that results in abuse of the principal

Severity
Critical
Title

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

Severity
Critical
Title

Protocol insolvency

Severity
Critical
Title

Unauthorized minting of interchain assets, whether fungible or not

Severity
Critical
Title

Execute arbitrary system commands

Out of scope

Program's Out of Scope information

The following vulnerabilities are excluded from the rewards for this bug bounty program:

  • Attacks requiring access to privileged addresses (governance, strategist)
  • Vulnerabilities in components that exist in the codebase but are demonstrably unused or not integrated with production systems will be classified as invalid.
  • Throttling or suppression of operations without loss of user and / or protocol funds
  • Best practice critiques
  • ‘Contract DDoS’
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