What it is
Cosmos runs a continuous bug bounty programme on Immunefi, open to any security researcher with no application or invitation needed. It has been live since 22 June 2026 and is listed on Immunefi's index of active programmes.
What it pays
Maximum payout is 50,000 USD. Rewards are published per asset type
Blockchain/DLT
- Critical: 50,000 USD flat
- High: 12,500 USD flat
- Medium: 2,500 USD flat
- Low: 1,000 USD flat
KYC is required before a reward is released.
Scope
23 assets are in scope. The programme page carries the full asset list, severity definitions and submission rules, and was last updated on 04 August 2026.