> For the complete documentation index, see [llms.txt](https://docs.web3pentesting.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities.md).

# Blockchain Protocol Vulnerabilities

- [51% Attacks](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities/51-attacks.md)
- [Eclipse Attacks](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities/eclipse-attacks.md)
- [Double Spending Attacks](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities/double-spending-attacks.md)
- [Sybil Attacks](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities/sybil-attacks.md)
- [Long-Range Attacks](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities/long-range-attacks.md)
- [Transaction Malleability](https://docs.web3pentesting.com/blockchain-protocol-vulnerabilities/transaction-malleability.md)