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Parallel

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Parallel is a capital-efficient, modular stablecoins protocol that allows the creation of over-collateralized, decentralized stablecoins. The protocol consists of several different modules, which can be added or removed over time by the DAO, from which stablecoins can be issued or minted.

ETH
Polygon
Arbitrum
Avalanche
Base
Gnosis
LayerZero
Optimism
Scroll
Sei
BSC
xDAI / Gnosis Chain
Defi
Stablecoin
CDP
DAO
JavaScript
NextJS
ReactJS
Solidity
Maximum Bounty
$250,000
Live Since
30 June 2025
Last Updated
02 October 2025
  • Triaged by Immunefi

  • PoC Required

Select the category you'd like to explore

Assets in Scope

Target
Type
Smart Contract - Protocol V3 - PRL - PrincipalMigrationContract
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Parallelizer Module - ParallelizerUSDp
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Savings Module - SavingsNameable
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - PRL - PRL Token
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Savings Module - sUSDp
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Parallelizer Module - Redeemer
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - PRL - SideChainFeeCollector
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Parallelizer Module - GenericHarvester
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Flashloan Module - FlashParallelToken
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Parallelizer Module - Swapper
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Bridging Module - lz-USDp
Added on
2 October 2025
Target
Type
Smart Contract - Protocol V3 - Core Protocol - ParallelAccessManager
Added on
2 October 2025

Impacts in Scope

Severity
Critical
Title

Manipulation of governance voting result deviating from voted outcome and resulting in a direct change from intended effect of original results

Severity
Critical
Title

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

Severity
Critical
Title

Permanent freezing of funds

Severity
Critical
Title

Protocol insolvency

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 and/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

Subdomain takeover with already-connected wallet interaction

Severity
Critical
Title

Direct theft of user funds

Severity
Critical
Title

Malicious interactions with an already-connected wallet, such as:

  • Modifying transaction arguments or parameters
  • Substituting contract addresses
  • Submitting malicious transactions
Severity
Critical
Title

Injection of malicious HTML or XSS through metadata

Out of scope

Default Out of Scope and rules

Smart Contract 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