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Bifrost

Bifrost is a Liquid Staking app-chain tailored for all blockchains, utilizing decentralized cross-chain interoperability to empower users to earn staking rewards and DeFi yields with flexibility, liquidity, and high security across multiple chains.

Polkadot
Defi
Crosschain Liquidity
Lending
Staking
Rust
Maximum Bounty
$500,000
Live Since
29 June 2022
Last Updated
28 July 2025
  • PoC Required

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Assets in Scope

Target
Type
Websites and Applications - Web/App Main Web App
Added on
23 July 2025
Target
Type
Blockchain/DLT - Bifrost
Added on
29 June 2022
Target
Type
Blockchain/DLT - Bifrost
Added on
29 June 2022
Target
Type
Blockchain/DLT - Bifrost
Added on
29 June 2022
Target
Type
Blockchain/DLT - Bifrost
Added on
29 June 2022

Impacts in Scope

Severity
Critical
Title

Execute arbitrary system commands

Severity
Critical
Title

Retrieve sensitive data/files from a running server, such as:

  • /etc/shadow
  • database passwords
  • blockchain keys (this does not include non-sensitive environment variables, open source code, or usernames)
Severity
Critical
Title

Taking down the application/website

Severity
Critical
Title

Taking state-modifying authenticated actions (with or without blockchain state interaction) on behalf of other users without any interaction by that user, such as, changing registration information, commenting, voting, making trades, withdrawals, etc.

Severity
Critical
Title

Direct fund losses caused by additional issuance of vTokens (e.g., vDOT, vKSM)

Severity
High
Title

Injecting/modifying the static content on the target application without Javascript (Persistent) such as HTML injection without Javascript, replacing existing text with arbitrary text, arbitrary file uploads, etc.

Severity
High
Title

Temporary freezing of network transactions by delaying one block by 500% or more of the average block time of the preceding 24 hours beyond standard difficulty adjustments

Severity
High
Title

Causing network processing nodes to process transactions from the mempool beyond set parameters

Severity
High
Title

RPC API crash affecting programs with greater than or equal to 25% of the market capitalization on top of the respective layer

Severity
High
Title

Unintended chain split (network partition)

Severity
High
Title

Changing sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as email or password of the victim, etc.

Severity
High
Title

Direct fund losses caused by non-vToken additional issuance

Out of scope

Program's Out of Scope information
  • Best practice critiques
Default Out of Scope and rules

Blockchain/DLT 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