Introducing OpenZeppelin Contracts v5.2 and OpenZeppelin Community Contracts

Contracts v5.2 runs parallel to more experimental development hosted in the community-owned OpenZeppelin Community Contracts library. Thils more experimental version aims for quicker iteration on the ...

The State of Smart Contract Upgrades - 2020 edition A survey of the different Ethereum smart...

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A flash-mintable asset-backed token is an ERC20-compliant token that is: Asset-backed and...

Security Insights

A high-severity vulnerability in the Argent wallet would have allowed attackers to take over...

Security Insights Zero-Day Vuln

In the wake of the current pandemic and other recent events affecting DeFi, we at OpenZeppelin have...

Security Insights

Learn about lending, collateral, loan to collateral ratio, protocol tokens, price oracles,...

Security Insights

Disclosure of a severe attack vector in the deployment of the popular Gnosis Safe Multisig wallet....

Security Insights Zero-Day Vuln

Flash Loans have been making the rounds. Even if the concept has been around for a year or two,...

Security Insights

It's been a busy 2019 for our dearest Research team. These are the main highlights of the year!.

Security Insights

We take a look at Bounties Network implementation of MetaTransactions and find two medium severity...

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One of the topics we focused on at OpenZeppelin this year was feedback. We feel that giving and...

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How to protect your contracts against reentrancy after Ethereum’s Istanbul hard fork.

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Gas Station Network is an open-source service that allows developers to create unique decentralized...

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