URGENT: Thirdweb Vulnerability Identified. Action Required. | NFT CULTURE | NFT News | Web3 Culture

Navigating the Waters of Web3 Security: Thirdweb’s Proactive Response to a Recent Vulnerability

Thirdweb’s Vigilant Approach to a Web3 Security Challenge

In the ever-evolving landscape of Web3, security remains a paramount concern. Thirdweb’s recent discovery of a vulnerability in a widely-used open-source library serves as a reminder of the constant vigilance required in this digital frontier. Here, we explore Thirdweb’s response to this challenge and the implications for the Web3 community.

Understanding the Security Flaw

On November 20th, 2023, Thirdweb identified a security vulnerability affecting numerous smart contracts across the Web3 ecosystem, including some of Thirdweb’s own pre-built contracts. This issue, while not yet exploited, necessitates immediate action from smart contract owners, especially those who utilized Thirdweb’s services prior to November 22nd, 2023.

Impacted Smart Contracts

The vulnerability touches a range of pre-built contracts, such as DropERC20, ERC721, ERC1155, and AirdropERC20. Owners of these contracts must urgently follow mitigation steps to prevent potential exploitation.

Proactive Mitigation Steps

To aid its users, Thirdweb and its security partners have developed a tool for identifying and implementing necessary mitigation measures. These steps typically involve locking the contract, taking a snapshot, and migrating to a new, secure contract. Detailed guidance is available on Thirdweb’s blog and through their mitigation tool.

Protecting Token Holders

Contract owners are advised to instruct their token holders to withdraw tokens from any liquidity or staking pools before beginning mitigation steps. This ensures the seamless distribution of new tokens post-mitigation. Users are also encouraged to revoke approvals on all Thirdweb contracts as an additional security measure.

Thirdweb’s Commitment to Security

In response to this incident, Thirdweb has enhanced its security protocols. This includes doubling bug bounty payouts and implementing more rigorous auditing processes. These steps aim to fortify the Web3 ecosystem and instill confidence in developers and users alike.

Support and Resources

Thirdweb is offering a retroactive gas grant to cover fees for contract mitigations, showcasing their commitment to supporting their community through this challenge. For further details and support, users are encouraged to visit Thirdweb’s blog and contact their support team directly.



Thirdweb’s swift action in response to a recent security vulnerability highlights their commitment to the safety and integrity of the Web3 ecosystem. By providing tools, guidance, and support, Thirdweb is leading the way in proactive digital security management.

Tags: Thirdweb, Web3 Security, Smart Contracts, Cybersecurity, ERC721, ERC1155, Blockchain Technology, Digital Innovation, Web3 Community, Smart Contract Mitigation

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