Crypto Bug Bounty Programs 2026

Triaged by HackenProof

ENDED

SLEX is a Global Cryptocurrency & Commodity Trading platform focused on the development and promotion of digital and blockchain-based asset trading.

Started date: 15 Apr 2024Last updated: 25 May 2026Submissions: 47

up to $500 Paid: 200

CEX

WEB

ENDED

Hack to the Future 2024 | ICP.Hub AE Hackathon

The Internet Computer is the world’s first web-speed, internet-scale public blockchain, developed by the DFINITY Foundation. The Internet Computer overcomes the limitations of traditional blockchains and smart contracts for better speed, storage costs, security, and scalability, offering Web2 performance on an infinite Web3 platform. As a 100% trustless network, the Internet Computer is the only public blockchain in the world that offers end-to-end decentralization and uses no centralized cloud nodes. The ICP.HUB AE is your regional gateway to the ICP Ecosystem. We are a community of Web3 enthusiasts, developers and entrepreneurs, expanding the footprint of the Internet Compute Protocol in the region. We are excited to be inviting you to ***Hack to the Future*** with us.

Started date: 11 Apr 2024Last updated: 25 May 2026Submissions: 1

up to $0 Paid: 0

WEB

ENDED

AssetMantle

AssetMantle is an enterprise assetization infrastructure layer designed to tokenize and manage real-world assets (RWAs) across industries such as real estate, healthcare, finance, and ESG. It provides modular tools for enterprises to bring assets on-chain, enabling programmable ownership, liquidity, and efficiency that traditional systems cannot offer. With features like decentralized identity (SSI/DID), regulatory compliance, and cross-chain interoperability, AssetMantle facilitates seamless integration with existing enterprise systems. Its ecosystem includes MantleWallet, MantleExplorer, and MantlePlace for secure asset management and trading, while MantleWorks offers consultancy services for end-to-end enterprise adoption

Started date: 20 Feb 2023Last updated: 25 May 2026Submissions: 22

up to $1,000 Paid: 0

NFT MARKETPLACE

BLOCKCHAIN

PAUSED

RISC Zero zkVM

The RISC Zero zkVM is a verifiable computer that works like a real embedded RISC-V micro-processor, enabling programmers to write ZK proofs like they write any other code.

Started date: 28 Mar 2024Last updated: 27 May 2026Submissions: 123

up to $150,000 Paid: 68250

BLOCKCHAIN

APPS

RUST

Triaged by HackenProof

LIVE

Cronos Web

This bug bounty program is focused on Web in Cronos which will directly lead to loss of user funds, or breach of sensitive data, or deletion of site data.

Started date: 28 Mar 2024Last updated: 13 May 2026Submissions: 56

up to $2,500 Paid: 9438

DAPP

WEB

Triaged by HackenProof

LIVE

Cronos Smart Contracts

This bug bounty program is focused on smart contracts and decentralised applications in Cronos blockchain with the emphasis on any vulnerabilities causing unintentional withdrawal/draining of funds/loss of user funds. The program covers key projects in the Cronos ecosystem, including VVS Finance, Tectonic, and other DeFi projects. Cronos is the EVM chain running in parallel to the Cronos POS Chain (https://cronos-pos.org). It aims to massively scale the DeFi and decentralised application (DApp) ecosystem, by providing developers with the ability to instantly port apps from Ethereum and EVM-compatible chains.

Started date: 28 Mar 2024Last updated: 13 May 2026Submissions: 123

up to $250,000 Paid: 0

DAPP

SMART CONTRACT

SOLIDITY

Triaged by HackenProof

LIVE

Cronos Blockchain Protocols

This bug bounty program is focused on Cronos (blockchain) with the emphasis on any vulnerabilities causing unintentional withdrawal/draining of funds/loss of user funds. Cronos is the Ethereum Virtual Machine (EVM) chain running in parallel to the Cronos POS Chain (https://cronos-pos.org). It aims to massively scale the DeFi and decentralised application (DApp) ecosystem, by providing developers with the ability to instantly port apps from Ethereum and EVM-compatible chains.

Started date: 28 Mar 2024Last updated: 15 May 2026Submissions: 221

up to $100,000 Paid: 14680

L1/L2

BLOCKCHAIN

Triaged by HackenProof

Hidden Gem

LIVE

Zest Protocol Smart Contracts

Zest Protocol is a Bitcoin lending protocol. Zest Protocol operates on-chain and is open-source. Zest Protocol exists to make Bitcoin productive. All of it. The protocol strives to create a vibrant borrowing and lending ecosystem around BTC the asset. For more information about Zest Protocol, please visit https://www.zestprotocol.com/. Zest Protocol provides rewards in USDC/T on Ethereum, denominated in USD. For more details about the payment process, please view the Rewards by Threat Level section further below.

Started date: 26 Mar 2024Last updated: 01 Jun 2026Submissions: Private

up to $100,000 Paid: Private

LENDING

SMART CONTRACT

CLARITY

Triaged by HackenProof

LIVE

MetaMask Validator Staking Smart Contracts

MetaMask is a self-custodial wallet used to manage your identity, digital assets and explore web3. This program covers Staking in [MetaMask Portfolio Validator Staking.](https://hackenproof.com/redirect?url=http://portfolio.metamask.io) Users stake 32 ETH and receive rewards in return. Deposits, claiming rewards, requesting withdrawals, provisionsing/deprovisioning of validator keys by the operator, and dispatching of rewards/fees are all executed by/via the [Kiln On-Chain (v1) smart contracts ](https://hackenproof.com/redirect?url=http://github.com/kilnfi/staking-contracts) deployed without a proxy.

Started date: 18 Mar 2024Last updated: 15 May 2026Submissions: 248

up to $700,000 Paid: 0

STAKING

SMART CONTRACT

SOLIDITY

Triaged by HackenProof

ENDED

Smilee Smart Contracts

On-chain options enabling volatility trading. Creators of the first Impermanent Gain options

Started date: 14 Mar 2024Last updated: 25 May 2026Submissions: 31

up to $75,000 Paid: 0

NFT MARKETPLACE

DEX

SMART CONTRACT

SOLIDITY

Bug Bounty Programs 2026

Explore all HackenProof’s programs below or filter the tech stack you work best with: let the bug hunt begin!