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Alchemix

Alchemix is your unified platform for saving, earning, borrowing, and fixed-term fixed-yield opportunities—all in one place. Built on years of iteration since launching the original self-repaying loan in 2021, Alchemix v3 brings all three pillars together with a smarter, more flexible design. The protocol allows you to:

  • Save and grow – deposit ETH or USDC and let our vault invest and earn yield across diversified strategies.
  • Borrow up to 90% LTV – access liquidity now while your collateral grows with yield and your leverage is reduced over time through scheduled redemptions. No interest rates to monitor, no price-based liquidations.
  • Earn fixed-rate yield – lock in predictable returns through fixed-term redemptions of alETH or alUSD.
Arbitrum
ETH
Optimism
Defi
DAO
Synthetic Assets
Token
Solidity
Maximum Bounty
$300,000
Live Since
25 August 2022
Last Updated
25 March 2026
  • Triaged by Immunefi

  • PoC Required

  • Vault program

  • Arbitration enabled

Select the category you'd like to explore

Assets in Scope

Target
Name
EXCEPT the folders “external/aave”, “mocks”, and “test”.
Added on
9 September 2022
Target
Primacy Of Impact
Name
Added on
25 March 2026
Name
VaultMigrationTool_USD.json
Added on
25 March 2026

Impacts in Scope

Severity
Critical
Title

Protocol insolvency

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
High
Title

Temporary freezing of funds for at least 1 day

Severity
Medium
Title

Miner-extractable value (MEV)

Severity
Low
Title

Smart contract fails to deliver promised returns, but doesn’t lose value

Severity
Low
Title

Unbounded gas consumption, that does not cause a more severe bug

Out of scope

Program's Out of Scope information
  • Best practice critiques
    • Specifically for the crosschaincanonicalbase.sol contract: This contract is outdated bridging code for Layer 2 alAssets, however, the layer 2 alAssets were upgraded and still contain state variables related to this code, therefore the code has not been stripped from the Layer 2 alAssets. The crosschaincanonicalbase.sol contract is out of scope, EXCEPT for any bugs that would allow anyone besides a trusted admin/multisig to access the functions, or any issues with the current implementation of the bridge/L2 token (alchemicalTokenBase) created by this contract.
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