Swell-logo

Swell

Swell is a permissionless, non-custodial, and liquid (re)staking protocol designed for stakers, node operators, and the broader Ethereum ecosystem.

ETH
Defi
Asset Management
Liquid Staking
Staking
Solidity
Maximum Bounty
$250,000
Live Since
27 April 2023
Last Updated
18 November 2024
  • PoC required

Rewards

Swell provides rewards in USDC on Ethereum, denominated in USD.

Rewards by Threat Level

Smart Contract
Critical
Up to: $250,000
Primacy of Rules
High
Flat: $5,000
Primacy of Rules
Medium
Flat: $2,500
Primacy of Rules
Critical Reward Calculation

Mainnet assets:

Reward amount is 10% of the funds directly affected up to a maximum of:

$250,000
Websites and Applications
Critical
Flat: $20,000
Primacy of Rules
High
Flat: $2,500
Primacy of Rules
Medium
Flat: $1,500
Primacy of Rules
Low
Flat: $1,000
Primacy of Rules

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.2. This is a simplified 5-level scale, with separate scales for websites/apps, smart contracts, and blockchains/DLTs, focusing on the impact of the vulnerability reported.

All bug reports must come with a PoC with an end-effect impacting an asset-in-scope in order to be considered for a reward. Explanations and statements are not accepted as PoC and code is required.

Rewards for critical smart contract vulnerabilities are further capped at 10% of the funds at risk. In cases of repeatable attacks, only the first attack is considered unless the smart contract cannot be upgraded or paused. However, there is a minimum reward of USD 50 000 and a maximum reward of USD 250 000 for Critical smart contract bug reports.

Previously known issues highlighted in the following audit reports are considered as out of scope:

Payouts are handled by the Swell team directly and are denominated in USD. However, payouts are done in USDC.

Program Overview

Swell is a permissionless, non-custodial, and liquid (re)staking protocol designed for stakers, node operators, and the broader Ethereum ecosystem.

As the first-ever fully unified restaking yield protocol, Swell provides a universal restaking yield layer that features a vertically-integrated restaked rollup Layer 2. This innovative architecture is powered by Swell native LRTs and secures a diverse set of AVSs, fostering a rich ecosystem of applications.

Above all, Swell aims to enhance the Ethereum ecosystem and its users by simplifying the (re)staking process and driving utility for its reward-bearing token. To learn more about Swell and how it can help you maximize your staking rewards, visit https://swellnetwork.io/.

KYC not required

No KYC information is required for payout processing.

Proof of Concept

Proof of concept is always required for all severities.

Prohibited Activities

Default prohibited activities
  • Any testing on mainnet or public testnet deployed code; all testing should be done on local-forks of either public testnet or mainnet
  • Any testing with pricing oracles or third-party smart contracts
  • Attempting phishing or other social engineering attacks against our employees and/or customers
  • Any testing with third-party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
  • Any denial of service attacks that are executed against project assets
  • Automated testing of services that generates significant amounts of traffic
  • Public disclosure of an unpatched vulnerability in an embargoed bounty
  • Any other actions prohibited by the Immunefi Rules

Feasibility Limitations

The project may be receiving reports that are valid (the bug and attack vector are real) and cite assets and impacts that are in scope, but there may be obstacles or barriers to executing the attack in the real world. In other words, there is a question about how feasible the attack really is. Conversely, there may also be mitigation measures that projects can take to prevent the impact of the bug, which are not feasible or would require unconventional action and hence, should not be used as reasons for downgrading a bug's severity.

Therefore, Immunefi has developed a set of feasibility limitation standards which by default states what security researchers, as well as projects, can or cannot cite when reviewing a bug report.

Severity
Min. - Max.
Critical
$250k
High
$2.5k -$5k
Medium
$1.5k -$2.5k
Low
$1k
Total Assets in Scope
30