03 March 2021
Live since
KYC required
Maximum bounty

Program Overview

Sovryn is an on-chain decentralized trading and lending protocol deployed on RSK, a side chain of the Bitcoin blockchain-powered by merge-mining, and is governed by the community. The Sovryn protocol is controlled by its community and stakeholders. There is no single company, organization, or individual that represents or controls the Sovryn protocol. While the Sovryn community is built on the principles of transparency, the Sovryn protocol's decentralized structure means that there is no single party that can be relied upon to provide you with accurate information.

The SOV token is used to tokenize the rights, rewards, and risks associated with participating in Sovryn Bitocracy. It is used to represent voting power and to wrap the rewards and risks of Sovryn's future into a digital representation. SOV can be used by the Sovryn protocol whenever there is a need to balance risks and rewards. Changes to the protocol introduce risks, but if they are successful, can grow the use of the protocol and the fee revenue it generates. SOV can be staked to cover user losses and thus insure that they do not occur.

The Sovryn bug bounty program was initially submitted as Sovryn Improvement Proposal 8 and was approved on February 26 with 100% consensus

It is focused around its smart contracts and the prevention of loss of user funds.

Rewards by Threat Level

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System. 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.

The final reward amount of critical smart contract vulnerabilities is capped at 10% of the funds at risk based on the vulnerability reported.

Bug reports involving the bridge must include demonstration of economic damage with a PoC.

In the case of two or more reports covering the same vulnerability, only the first complete bug report gets the reward.

All payouts done by the Sovryn treasury and are pegged to the USD values set here and are payable in BTC though the Sovryn team may, at their discretion, have up to 50% of the reward payable in SOV according to a vesting schedule dependent on the amount paid out.


Vulnerabilities with Economic DamageUp to USD $30 000

Smart Contracts and Blockchain

Up to USD $1,000,000
USD $22,140
USD $8,800
USD $2,200
USD $0

Assets in Scope

Only the branches in the assets in scope table are considered as in-scope of the bug bounty program. All other branches, including the default branch are considered as out-of-scope.

Prioritized Vulnerabilities

We are especially interested in receiving and rewarding vulnerabilities of the following types:

Smart Contracts/Blockchain:

  • Re-entrancy
  • Logic errors
    • including user authentication errors
  • Solidity/EVM details not considered
    • including integer over-/under-flow
    • including unhandled exceptions
  • Trusting trust/dependency vulnerabilities
    • including composability vulnerabilities
  • Oracle failure/manipulation
  • Novel governance attacks
  • Economic/financial attacks
    • including flash loan attacks
  • Congestion and scalability
    • including running out of gas
    • including block stuffing
    • including susceptibility to frontrunning
  • Consensus failures
  • Cryptography problems
    • Signature malleability
    • Susceptibility to replay attacks
    • Weak randomness
    • Weak encryption
  • Susceptibility to block timestamp manipulation
  • Missing access controls / unprotected internal or debugging interfaces


  • All bug reports involving economic damages are prioritized for this bug bounty program.

Out of Scope & Rules

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

  • Attacks that the reporter has already exploited themselves, leading to damage
  • Attacks requiring access to leaked keys/credentials
  • Attacks requiring access to privileged addresses (governance, strategist)

Smart Contracts and Blockchain

  • 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

The following activities are prohibited by bug bounty program:

  • Any testing with mainnet or public testnet contracts; all testing should be done on private testnets
  • 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
  • Automated testing of services that generates significant amounts of traffic
  • Public disclosure of an unpatched vulnerability in an embargoed bounty