Rheo
Bounty Range
$1,000 - $50,000
external program
Rheo is a fixed-rate lending marketplace built on an order book where offers are expressed like yield curves, allowing efficient and continuous pricing across markets and maturities.
In-Scope Targets:
Repository: https://github.com/rheo-xyz/rheo-solidity
Repository: https://github.com/rheo-xyz/very-liquid-vaults
If you discover a vulnerability in any component that is not explicitly listed but poses a risk to user funds, user data, or the integrity of the system, you may submit it for consideration. The team will review such submissions on a case-by-case basis.
In-Scope Deployments:
Out-of-Scope Targets:
No Unauthorized Testing on Production Environments: Do not test vulnerabilities on mainnet or public testnet deployments without prior authorization. Use local test environments or private test setups.
No Public Disclosure Without Consent: Do not publicly disclose details of any vulnerability before it has been addressed and you have received written permission to disclose.
No Exploitation or Data Exfiltration: Do not exploit the vulnerability beyond the minimum steps necessary to demonstrate the issue. Do not access private data, engage in social engineering, or disrupt service.
No Conflict of Interest: Individuals currently or formerly employed by Rheo, or those who contributed to the development of the affected code, are ineligible to participate.
Report must include:
Reports should be made as soon as possible—ideally within 24 hours of discovery.
To be eligible for a reward, you must:
You must also be of legal age in your jurisdiction and not be a resident in a country under sanctions or restrictions, as required by applicable laws.
Vulnerabilities are classified using two factors: Impact and Likelihood. The combination of these factors determines the severity and guides the reward amount.
Risk Classification Matrix
| Severity Level | Likelihood: High | Likelihood: Medium | Likelihood: Low |
|---|---|---|---|
| Impact: High | Critical | High | Medium |
| Impact: Medium | High | Medium | Low |
| Impact: Low | Medium | Low | — |
Impact Definitions:
Critical:
High:
Medium:
Low:
Likelihood Definitions:
| Risk Score | Maximum Payout | Minimum Payout (Optional) |
|---|---|---|
| Critical | $50,000 | $10,000 |
| High | $5,000 | $1,000 |
Note: Actual reward amounts are determined at Rheo's sole discretion. Factors influencing payout include quality of report, completeness, and the severity and exploitability of the vulnerability.
10% of recovered funds
By submitting a report, you grant Rheo the rights necessary to investigate, mitigate, and disclose the vulnerability. Reward decisions and eligibility are at the sole discretion of Rheo. The terms, conditions, and scope of this Program may be revised at any time. All participants are responsible for reviewing the latest version before submitting a report.