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Ostium bug bounty programs

ostium.com Updated

Ostium runs one public program: an Immunefi bug bounty paying up to $200,000.

Top reward
$200,000
Immunefi
Programs
1
1 pays cash
Targets in scope
17
2 types
Last change
None yet
Tracked since Nov 2026

Where to report

The one public program Ostium runs.

  • Ostium

    Immunefi · Bug bounty

    Open

    Top reward

    $200k
    Critical
    $200k
    High
    $50k
    Medium
    $5,000
    Low
    $1,000
    KYC
    Required

Amounts are the top reward per severity in the currency each program pays. First response is the platform's measured average when it publishes one, else what the policy promises.

What is in scope

17 targets.

  • ostium.app

    Domains

  • https://arbiscan.io/address/0x083F97BabF33D4abC03151B5DEc98170761f4025

    Smart contracts

  • https://arbiscan.io/address/0x20D419a8e12C45f88fDA7c5760bb6923Cee27F98

    Smart contracts

  • https://arbiscan.io/address/0x260E349F643f12797fDc6f8c9d3df211D5577823

    Smart contracts

  • https://arbiscan.io/address/0x3890243a8fc091c626ed26c087a028b46bc9d66c

    Smart contracts

  • https://arbiscan.io/address/0x52453FBC4A33F7A2A0a01d67B952625816f161b4

    Smart contracts

  • https://arbiscan.io/address/0x52B2a78E12b09B66C6c8ce291D653D40bAb77f0c

    Smart contracts

  • https://arbiscan.io/address/0x6D0bA1f9996DBD8885827e1b2e8f6593e7702411

    Smart contracts

  • https://arbiscan.io/address/0x7720fC8c8680bF4a1Af99d44c6c265a74e9742a9

    Smart contracts

  • https://arbiscan.io/address/0x799a139aE56e11F0476aCE2f6118CfcAed9608d2

    Smart contracts

  • https://arbiscan.io/address/0x959Da1452238F71F17f7DA5dbA2e9c04FEf57324

    Smart contracts

  • https://arbiscan.io/address/0xb4f1123BE58f5d69E1cf565ED8756C7fcf31c8D3

    Smart contracts

  • https://arbiscan.io/address/0xB71ec9eBD8145daCaCF6724363143cb5667A3d36

    Smart contracts

  • https://arbiscan.io/address/0xccd5891083a8acd2074690f65d3024e7d13d66e7

    Smart contracts

  • https://arbiscan.io/address/0xd456939e54F68Ef9B0BE62aBB2EC4A37397Cb814

    Smart contracts

  • https://arbiscan.io/address/0xE607aC9FF58697c5978AfA1Fc1C5C437a6D1858c

    Smart contracts

  • https://arbiscan.io/address/0xeB85dC6095c74D36500C9cdcaCc15EcDC223Bbf7

    Smart contracts

No target matches. Try part of a host name, such as the company name.

Recent changes

Reward and scope changes across every Ostium 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 ostium.com: 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.