Stacks Endowment bug bounty programs
stacks.co Updated
Stacks Endowment runs two public programs: an Immunefi bug bounty paying up to $250,000 and an Immunefi bug bounty paying up to $250,000.
- Top reward
- $250,000
- Immunefi
- Programs
- 2
- 2 pay cash
- Targets in scope
- 15
- 3 types, deduplicated
- Last change
- None yet
- Tracked since Nov 2026
Where to report
2 programs, side by side. Report where the affected target is in scope; when two programs cover it, pick the one that pays more.
Start here
sBTC
Immunefi · Pays the most of the 2 programs: up to $250,000.
| Program | Critical | High | Medium | Low | Top reward | Safe harbor | KYC | First response | Status |
|---|---|---|---|---|---|---|---|---|---|
sBTC
Immunefi · Bug bounty |
$250k (highest) | $25k (highest) | – | – | $250,000 | Partial | Required | 14 days promised | Open |
|
Stacks
Immunefi · Bug bounty |
$250k | $15k | $5,000 (highest) | $2,500 (highest) | $250,000 | – | Required | 5 days average | Open |
-
- Critical
- $250k (highest)
- High
- $25k (highest)
- Medium
- –
- Low
- –
- Safe harbor
- Partial
- KYC
- Required
- First response
- 14 days promised
-
- Critical
- $250k
- High
- $15k
- Medium
- $5,000 (highest)
- Low
- $2,500 (highest)
- KYC
- Required
- First response
- 5 days average
Amounts are the top reward per severity in the currency each program pays. Green marks the highest per severity. First response is the platform's measured average when it publishes one, else what the policy promises.
What is in scope
15 targets across all 2 programs, each listed once with the programs that cover it. 3 excluded.
-
https://github.com/stacks-network/stacks-core/blob/main/stackslib/src/chainstate/stacks/boot/costs.clar
Source code
Covered by Stacks
-
https://github.com/stacks-network/stacks-core/blob/main/stackslib/src/chainstate/stacks/boot/lockup.clar
Source code
Covered by Stacks
-
https://github.com/stacks-network/stacks-core/blob/main/stackslib/src/chainstate/stacks/boot/pox-5.clar
Source code
Covered by Stacks
-
https://github.com/stacks-network/stacks-core/tree/main/stacks-node/src
Source code
Covered by Stacks
No target matches. Try part of a host name, such as the company name.
Out of scope 3
Don't test these. A program can exclude a host another program covers; the program you report to decides.
-
Any testing on mainnet or public testnet deployed code; all testing should be done on local-forks of either public testnet or mainnet
sBTC
-
Any testing with pricing oracles or third-party smart contracts
sBTC
-
Any testing with third-party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
sBTC
Recent changes
Reward and scope changes across every Stacks Endowment program, newest first.
No changes recorded yet. New targets and reward moves show up here and in the RSS feed.
About this page
This page gathers every public program listed under stacks.co: platform programs, self-hosted policies and security.txt contacts. Each program's own policy decides what is in scope and what it pays; check it before you test.
Something wrong or missing? Report a correction.