Superfluid - Super Token Smart Contracts: Program Info

Triaged by HackenProof

Superfluid protocol provides an ERC20 compatible token standard called Super Token, that allows tokens to do more, namely money streaming, money distribution, and on-chain cashflow automation (aka. Super App Framework).

In Scope

Target Type Severity Reward


Smart Contract Critical Bounty


Smart Contract Critical Bounty


Smart Contract Critical Bounty


Smart Contract Critical Bounty


Smart Contract Critical Bounty


Smart Contract Critical Bounty

SuperfluidLoader v1

Smart Contract Critical Bounty


Smart Contract Critical Bounty

MATICx - SETH Super Token

Smart Contract Critical Bounty

ETHx - Super Token Wrapper

Smart Contract Critical Bounty


We are looking for evidence and reasons for incorrect behavior of the smart contract, which could cause unintended functionality:

  • Stealing or loss of funds
  • Unauthorized transaction
  • Transaction manipulation
  • Attacks on logic (behavior of the code is different from the business description)
  • Reentrancy
  • Reordering
  • Over and underflows


  • Incorrect data supplied by third party oracles
  • Not to exclude oracle manipulation/flash loan attacks
  • Basic economic governance attacks (e.g. 51% attack)
  • Lack of liquidity
  • Best practice critiques
  • Sybil attacks
  • Spam attacks
  • Centralization risks
  • Issues without proof of concept are out of scope

The following known issues are considered to be out of scope:

  • Gas griefing specifically by spam attacks
  • Gas griefing specifically in SuperApp termination callbacks
  • Re-entrance issues:
  • SuperApp framework allowing callbacks
  • Super Token is ERC-777, which also allows callbacks
  • Avoid using web application scanners for automatic vulnerability searching which generates massive traffic
  • Make every effort not to damage or restrict the availability of products, services, or infrastructure
  • Avoid compromising any personal data, interruption, or degradation of any service
  • Don’t access or modify other user data, localize all tests to your accounts
  • Perform testing only within the scope
  • Don’t exploit any DoS/DDoS vulnerabilities, social engineering attacks, or spam
  • Don’t spam forms or account creation flows using automated scanners
  • In case you find chain vulnerabilities we’ll pay only for vulnerability with the highest severity.
  • Don’t break any law and stay in the defined scope
  • Any details of found vulnerabilities must not be communicated to anyone who is not a HackenProof Team or an authorized employee of this Company without appropriate permission
  • Do not discuss this program or any vulnerabilities (even resolved ones) outside of the program without express consent from the organization
  • No vulnerability disclosure, including partial is allowed for the moment.
  • Please do NOT publish/discuss bugs

We are happy to thank everyone who submits valid reports which help us improve the security. However, only those that meet the following eligibility requirements may receive a monetary reward:

  • You must be the first reporter of a vulnerability.
  • The vulnerability must be a qualifying vulnerability
  • Any vulnerability found must be reported no later than 24 hours after discovery and exclusively through
  • You must send a clear textual description of the report along with steps to reproduce the issue, include attachments such as screenshots or proof of concept code as necessary.
  • You must not be a former or current employee of us or one of its contractor.
  • ONLY USE YOUR HackenProof ADDRESS (in case of violation, no bounty can be awarded)
  • Provide detailed but to-the point reproduction steps