XDaiForeignBridge: DAI-xDAI TokenBridge contract on the Ethereum Mainnet 

HomeBridgeErcToNative: DAI-xDAI TokenBridge contract on the Gnosis chain

ForeignOmnibridge: OmniBridge contract on the Ethereum Mainnet

HomeOmnibridge: OmniBridge contract on the Gnosis chain

The smart contract regarding native xDAI bridging (XDaiForeignBridge and HomeBridgeErcToNative)  can be found at [https://github.com/gnosischain/tokenbridge-contracts/tree/xdaibridge-upgrade-sda](https://github.com/gnosischain/tokenbridge-contracts/tree/xdaibridge-upgrade-sda). The smart contracts regarding arbitrary ERC20 bridging (ForeignOmnibridge and HomeOmnibridge) can be found at [https://github.com/gnosischain/omnibridge/tree/master](https://github.com/gnosischain/omnibridge/tree/master).

Only those in the Assets in Scope table are considered as in-scope of the bug bounty program.

If an impact can be caused to any other asset managed by Gnosis that isn’t on this table but for which the impact is in the Impacts in Scope section below, you are encouraged to submit it for the consideration by the project.

Gnosis Chain is an EVM compatible, community-owned network that prioritizes credible neutrality and resiliency, open to everyone without privilege or prejudice. Secured by over 165k validators around the world, Gnosis Chain has all the tooling you are used to and trust-minimized bridges to mainnet.

Theft of unclaimed yield

Theft of unclaimed royalties

Permanent freezing of unclaimed yield

Permanent freezing of unclaimed royalties

Temporary freezing of funds for at least  1 week

Temporary freezing NFTs for at least  1 week

Miner-extractable value (MEV)

Smart contract unable to operate due to lack of token funds

Block stuffing for profit

Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol)

Theft of gas

Unbounded gas consumption

Any governance voting result manipulation

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

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

Permanent freezing of funds

Permanent freezing of NFTs

Unauthorized minting of NFTs

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

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

Smart Contract regarding native xDAI bridging

Gnosis Chain Smart Contracts

Smart Contracts regarding arbitrary ERC20 bridging

Rewards are distributed according to the impact of the vulnerability based on the [Immunefi Vulnerability Severity Classification System V2.2](https://immunefi.com/immunefi-vulnerability-severity-classification-system-v2-2). This is a simplified 5-level scale, with separate scales for websites/apps and smart contracts/blockchains, encompassing everything from consequence of exploitation to privilege required to likelihood of a successful exploit.

All smart contract bug reports must come with a PoC with an end-effect impacting an asset-in-scope in order to be considered for a reward.

Critical and High smart contract vulnerabilities are capped at 10% of economic damage, primarily taking into consideration funds at risk, but also PR and branding aspects, at the discretion of the team.

Payouts are handled by the __Gnosis Chain__ team directly and are denominated in __USD__. However, payouts are done in __USDC or xDAI__.

Gnosis Chain

Codebase