Cosmos: Economic DoS (Griefing) on IBC Relayers via `memo` Callback Gas Exploitation

Summary of Impact This vulnerability allows an attacker to bypass the relayer's simulation defense and force permissionless relayers to execute computationally expensive, but 'successful', transactions via the memo callback feature. This creates an asymmetric economic attack where the relayer's...

Willchain: Decentralized, Privacy-Preserving, Self-Executing, Digital Wills

This work presents a novel decentralized protocol for digital estate planning that integrates advances distributed computing, and cryptography. The original proof-of-concept was constructed using purely solidity contracts. Since then, we have enhanced the implementation into a layer-1 protocol th...

Malicious Relayers Could Favor Their Routers

Lines of code Vulnerability details Vulnerability Details Assume that a malicious relayer operates a router in Connext providing fast-liquidity service. A malicious relayer could always swap the routers within the execute calldata with the routers owned by malicious relayer, and submit it to the...

Account compromise in Evmos

Impact What kind of vulnerability is it? Who is impacted? Classification The vulnerability has been classified as critical with a score of 9.0 highest. It has the potential to affect and drain unclaimed airdrop funds from Cosmos and Osmosis eligible user addresses. Disclosure The attack requires...