Ostium
Immunefi live webcontractarbitrumBug bounty program on Immunefi. Official listing: https://immunefi.com/bug-bounty/ostium/information/. Scope and rules are controlled by the program — always verify against the official listing before testing.
Max bounty
$200K
Starts
2025-04-30
In-scope assets
20
Last updated
2026-05-29
In-scope assets
| Type | Asset | Detail |
|---|---|---|
| contract | 0x083f97babf33d4abc03151b5dec98170761f4025 | arbitrum |
| contract | 0x20d419a8e12c45f88fda7c5760bb6923cee27f98 | arbitrum |
| contract | 0x260e349f643f12797fdc6f8c9d3df211d5577823 | arbitrum |
| contract | 0x3890243a8fc091c626ed26c087a028b46bc9d66c | arbitrum |
| contract | 0x52453fbc4a33f7a2a0a01d67b952625816f161b4 | arbitrum |
| contract | 0x52b2a78e12b09b66c6c8ce291d653d40bab77f0c | arbitrum |
| contract | 0x6d0ba1f9996dbd8885827e1b2e8f6593e7702411 | arbitrum |
| contract | 0x7720fc8c8680bf4a1af99d44c6c265a74e9742a9 | arbitrum |
| contract | 0x799a139ae56e11f0476ace2f6118cfcaed9608d2 | arbitrum |
| contract | 0x959da1452238f71f17f7da5dba2e9c04fef57324 | arbitrum |
| contract | 0xb4f1123be58f5d69e1cf565ed8756c7fcf31c8d3 | arbitrum |
| contract | 0xb71ec9ebd8145dacacf6724363143cb5667a3d36 | arbitrum |
| contract | 0xccd5891083a8acd2074690f65d3024e7d13d66e7 | arbitrum |
| contract | 0xd456939e54f68ef9b0be62abb2ec4a37397cb814 | arbitrum |
| contract | 0xe607ac9ff58697c5978afa1fc1c5c437a6d1858c | arbitrum |
| contract | 0xeb85dc6095c74d36500c9cdcacc15ecdc223bbf7 | arbitrum |
| web | https://immunefi.com/ | |
| web | https://ostium.app/ | |
| web | https://t.me/ostiumbot | |
| web | https://www.ostium.com/ |
Watching Ostium? BountyHunt monitors every in-scope repo and tells you the moment a commit, release, or scope change lands — in the app, by webhook, or straight to your agent over MCP.
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